import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
 import java.io.*;
 
 public class EmployeeEntry extends JFrame implements ActionListener,  KeyListener,ItemListener {
 
         JTextField id, last,first,mi,age,branch,hours,pay,items,rate;
			JRadioButton male,female;
			JComboBox emptype;
			JButton add,delete, back;
			JPanel p1,p2,p3,p4,p5,p6,p7;
		   JPanel p1_1,p1_2, p2_1,p2_2, p3_1,p4_1, p4_2,p5_1,p5_2,p6_1,p6_2,p7_1;
			JLabel labelMessage;
         EmployeeList emplist=new EmployeeList();
			Employee empH=new HourlyEmployee();
			Employee empP=new PieceWorker();
			Employee [] employee;
			String gender;
 	
 
	ObjectInputStream instream;
	ObjectOutputStream outstream;

    public  EmployeeEntry(){}
     
    
    public void addToFile(EmployeeList list){
    	try{
    		FileOutputStream fs = new FileOutputStream("employee.dat");
    		outstream  = new ObjectOutputStream(fs);
    		//write list to file
    		outstream.writeObject(list);
    		}
    	  catch(FileNotFoundException fn){
    	  	File file = new File("employee.dat");
    	  	}
    	  catch(IOException io){
    	  	io.printStackTrace();
    	  	}
    	  finally{
    	  	try{
    	  	  outstream.close();
    	  	}
    	  	catch(IOException io){
    	  		io.printStackTrace();
    	  		}
    	  }
    	  	}
     
   
   public EmployeeList readFile(){
    	EmployeeList list = new 	EmployeeList();
   	 try{
   	 	FileInputStream is = new FileInputStream("employee.dat");
   	 	instream = new ObjectInputStream(is);
   	 	 list = ( 	EmployeeList)instream.readObject();
   	 	}
   	  catch(FileNotFoundException fn){}
   	  catch(ClassNotFoundException cn){}
   	  catch(IOException io){}
   	  finally{
   	  	try{
   	  		instream.close();
   	  	}
   	  	 catch(IOException io){}
   	  	}
   	  return list;
   	}
    
    public static void display( 	EmployeeList list){
    Employee [] empl = list.getEmployee();
    	for(int i = 0; i< list.getCount();i++ ){
    	   System.out.print( empl[i].getIdno() + " ");
    	   System.out.print(  empl[i].getLastname() + " ");
    	   System.out.print(  empl[i].getFirstname() + " ");
    	   System.out.print(  empl[i].getAge() + " ");
    	   System.out.print(  empl[i].getCompanyName() + " ");
    	   System.out.println();
    	}
    }
  
 			private MainMenu main;
				public void instantiate(){
			
			  	id=new JTextField(10);
				last=new JTextField(15);
				first=new JTextField(15);
				age=new JTextField(3);
				mi=new JTextField(2);
				branch=new JTextField(20);
				hours=new JTextField(10);
				pay=new JTextField(12);
				items=new JTextField(10);
				rate=new JTextField(13);
          	male=new JRadioButton();
				female=new JRadioButton();
				String [] combo={"----------------------------------------","Hourly Employee", "Piece Worker"};
				emptype=new JComboBox(combo);
				add=new JButton("ADD");
				delete=new JButton("DELETE");
				back=new JButton("BACK TO MAIN");
				labelMessage=new JLabel();
            p1=new JPanel();
				p2=new JPanel();
				p3=new JPanel();
				p4=new JPanel();
				p5=new JPanel();
				p6=new JPanel();
				p7=new JPanel();
			  	Container pane = getContentPane();
           	pane.setLayout(new GridLayout(8,0));               
				pane.add(p1);
		   	pane.add(p2);
				pane.add(p3);
				pane.add(p4);
				pane.add(p5);
				pane.add(p6);
				pane.add(p7);
									
			}//end of the instantiate
	
	
	
	 	
			
			
	public  EmployeeEntry()
	{
			   super("Employee Entry");
				this.instantiate();								
    
			   FlowLayout flow = new FlowLayout();
	         flow.setAlignment(FlowLayout.LEFT);
			  	   p1.setLayout(new GridLayout(2,2));
					p2.setLayout(new GridLayout(1,2));
			      p3.setLayout(flow);
					p4.setLayout(new GridLayout(1,2));
					p5.setLayout(new GridLayout(1,2));
					p6.setLayout(new GridLayout(1,2));
					p7.setLayout(new FlowLayout());	
				  // group.add(male);
				  // group.add(female);

								
					 p1_1=new JPanel();
           		 p1_2=new JPanel();
					 p2_1=new JPanel();
					 p2_2=new JPanel();
					 p3_1=new JPanel();
					 p4_1=new JPanel();
					 p4_2=new JPanel();
					 p5_1=new JPanel();
                p5_2=new JPanel();	
					 p6_1=new JPanel();
					 p6_2=new JPanel();
					 p7_1=new JPanel();
					

                

					  p4_1.setBackground(Color.LIGHT_GRAY);
                 p5_1.setBackground(Color.LIGHT_GRAY);
                 p6_1.setBackground(Color.LIGHT_GRAY);
                  
					  p4_2.setBackground(Color.LIGHT_GRAY);
                 p5_2.setBackground(Color.LIGHT_GRAY);
                 p6_2.setBackground(Color.LIGHT_GRAY);

					 FlowLayout low = new FlowLayout();
	             low.setAlignment(FlowLayout.LEFT);
					 p1_1.setLayout(low);
					 p1_2.setLayout(low);
					 p2_1.setLayout(low);
					 p2_2.setLayout(new FlowLayout());
					 p4_1.setLayout(low);

					 p5_1.setLayout(low);
					 p5_2.setLayout(new FlowLayout());

					 p6_1.setLayout(low);
				    p6_2.setLayout(new FlowLayout());
                FlowLayout low2 = new FlowLayout();
	             low2.setAlignment(FlowLayout.RIGHT); 
					 p4_2.setLayout(new FlowLayout());
					 p3_1.setLayout(low2);
					  //p1LABEL.setLayout(low2);
					 // p1.add(p1LABEL);
					 p7_1.setLayout(new FlowLayout());

                p1_1.add(new JLabel("ID NUMBER "));
					 p1_1.add(id);	
					 p1_1.add(labelMessage);
                p1.add(p1_1);
					 p1_2.add(new JLabel("LASTNAME"));
			 		 p1_2.add(last);
					 p1_2.add(new JLabel("FIRSTNAME"));
					 p1_2.add(first);
					 p1_2.add(new JLabel("MI"));
					 p1_2.add(mi);
					 p1.add(p1_2);	
					 p2_1.add(new JLabel("AGE"));
					 p2_1.add(age);
					 p2.add(p2_1);
					 p2_2.add(new JLabel("GENDER"));
					 p2_2.add(male);
					 p2_2.add(new JLabel("Male"));
					 p2_2.add(female);
					 p2_2.add(new JLabel("Female"));
					 p2.add(p2_2);					 
					 p3_1.add(new JLabel("BRANCH"));
					 p3_1.add(branch);
					 p3_1.add(new JLabel("Employee Type"));
					 p3_1.add(emptype);
					 p3.add(p3_1);
					 p4_1.add(new JLabel("Hourly Employee"));
					 p4.add(p4_1);
					 p4_2.add(new JLabel("Piece Worker"));
					 p4.add(p4_2);
					 p5_1.add(new JLabel("hours worked"));
					 p5_1.add(hours);
					 p5.add(p5_1);
					 p5_2.add(new JLabel("no. of items"));
					 p5_2.add(items);
                p5.add(p5_2);
					 p6_1.add(new JLabel("pay rate"));
					 p6_1.add(rate);
					 p6.add(p6_1);
					 p6_2.add(new JLabel("rate/item"));
					 p6_2.add(pay);
					 p6.add(p6_2);
					 p7_1.add(add);
					 p7_1.add(delete);
					 p7_1.add(back);
					 p7.add(p7_1);
					 this.addactions();
			   	 p4_1.setVisible(false);
	             p5_1.setVisible(false);
	             p6_1.setVisible(false);	
	             p4_2.setVisible(false);
	         	 p5_2.setVisible(false);
	          	 p6_2.setVisible(false);	
 
	 								
				setSize(590,420);
			   setVisible(true);
			   setResizable(false);
            setDefaultCloseOperation(EXIT_ON_CLOSE); 
				setLocation(300,100);
            delete.setEnabled(false);
			
			
			}// end of cronstructor
		 
		 
		 
		 public void addactions(){
		   emptype.addActionListener(this);
			back.addActionListener(this);
			delete.addActionListener(this);
			add.addActionListener(this);
			mi.addKeyListener(this);
			id.addKeyListener(this);
			last.addKeyListener(this);
			age.addKeyListener(this);
			first.addKeyListener(this);
			hours.addKeyListener(this);
			pay.addKeyListener(this);
			items.addKeyListener(this);
			rate.addKeyListener(this);
			male.addItemListener(this);
			female.addItemListener(this);
			
		  	} //end of the addactions
		
		
		public void itemStateChanged(ItemEvent item)
		{
		  Object it=item.getSource();
		  int select=item.getStateChange();
		    
			 if(it==male)
			 {
			  
			  if(select==ItemEvent.SELECTED)
			  {
			    gender="MALE";
				 female.setEnabled(false);
			  }
			  else
			  {
			   gender=null;
				female.setEnabled(true);
			  }
			  
			 }	
			
			if(it==female)	 
			 {
			  if(select==ItemEvent.SELECTED)
			  {
			   //female.setEnabled(true);  
				gender="FEMALE";
				male.setEnabled(false);
			  }
			  else
			  {
			   gender=null;
				male.setEnabled(true);
			  }
			 }
			
				}
		
		
  // to perform the actions of the actionEvent		
 	public void actionPerformed(ActionEvent e)
	{
	  	
	   if(e.getSource()==add&&emptype.getSelectedItem()=="----------------------------------------")
		{
		JOptionPane.showMessageDialog(null,"You must choose any of the employee type");
    	}	
		
	   			

			
		if(e.getSource()==back)
		{
		main=new MainMenu();
			setVisible(false);
		}
		
		if(e.getSource()==delete&&emptype.getSelectedItem()=="Hourly Employee")
		 {
		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
		  if(del2==JOptionPane.YES_OPTION)
			deleteHourly();		
	    }   
		if(e.getSource()==delete&&emptype.getSelectedItem()=="Piece Worker")
		{
		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
		  if(del2==JOptionPane.YES_OPTION)
        deletePiece();
		}
		 if(e.getSource()==delete&&emptype.getSelectedItem()=="----------------------------------------")
		{
	    JOptionPane.showMessageDialog(null,"You must select one type of employee");
  		}

		
		 if(e.getSource()==add&&emptype.getSelectedItem()=="Piece Worker")
		 {
			emptype.setSelectedItem("----------------------------------------");

		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to add?");
		  if(del2==JOptionPane.YES_OPTION)
		{ 
	    addPiece();
	   }
			 		 
      }
		  
		 if(e.getSource()==add&&emptype.getSelectedItem()=="Hourly Employee")
		{
 				emptype.setSelectedItem("----------------------------------------");

  		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to add?");
		  if(del2==JOptionPane.YES_OPTION)
		{
        	 addhourly();      
 	  	}
		}
		
  	
	
		if(emptype.getSelectedItem()=="Hourly Employee")
		{
		 p4_2.setVisible(false);
	    p5_2.setVisible(false);
	    p6_2.setVisible(false);	
		 p4_1.setVisible(true);
		 p5_1.setVisible(true);
		 p6_1.setVisible(true);	
		}
	
	  if(emptype.getSelectedItem()=="Piece Worker")
		{
		 p4_1.setVisible(false);
	    p5_1.setVisible(false);
	    p6_1.setVisible(false);	
		 p4_2.setVisible(true);
		 p5_2.setVisible(true);
		 p6_2.setVisible(true);	
		}
    
	 	if(emptype.getSelectedItem()=="----------------------------------------")
		{
		          p4_1.setVisible(false);
	             p5_1.setVisible(false);
	             p6_1.setVisible(false);	
	             p4_2.setVisible(false);
	         	 p5_2.setVisible(false);
	          	 p6_2.setVisible(false);	
    	}
		
	
  } // end of the actionPerformed method
  
  
  
   // to perform the keyListener 
	 public void keyPressed(KeyEvent e){
	    	
		 if(idlenght()>0)
		 { 
		  if(e.getKeyCode()==KeyEvent.VK_ENTER)
		 {
		  
		  if(!isfound())
		  {
		   labelMessage.setForeground(Color.RED);  
			labelMessage.setText("ID IS NOT FOUND");
		   last.setText(null);
		 	first.setText(null);
		   mi.setText(null);
		   age.setText(null);
		   branch.setText(null);
		   hours.setText(null);
		   rate.setText(null);
		   male.setSelected(false);
		   female.setSelected(false);
			delete.setSelected(false);

				  }
		  
   if(isfound())
		  {
		   delete.setEnabled(true);
			    
	  	for(int x=0;x<emplist.getcount();x++)
		 {
		  
		 if(emplist.employee[x] instanceof HourlyEmployee)
		  {
		    if(id.getText().equals(emplist.employee[x].getIdno()))
		 {  
		  items.setText(null);
	     pay.setText(null);		
		  labelMessage.setForeground(Color.RED);
        labelMessage.setText("Id number found at HourlyEmployee");
		  last.setText(emplist.employee[x].getLastname());
		  first.setText(emplist.employee[x].getFirstname());
		  mi.setText(emplist.employee[x].getmi());
		  age.setText(""+emplist.employee[x].getAge());
		  branch.setText(emplist.employee[x].getCompName());
		  rate.setText(""+emplist.employee[x].getPerHour());
        hours.setText(""+emplist.employee[x].getHours());
        emptype.setSelectedItem("Hourly Employee"); 
		     
		if(emplist.employee[x].getgender().equals("MALE"))
		{
	      male.setSelected(true);
   	   female.setSelected(false);
		}
		if(emplist.employee[x].getgender().equals("FEMALE"))

		{
		 male.setSelected(false);
       female.setSelected(true);
		}
		   }
			
							
			}
	
	    if(emplist.employee[x] instanceof PieceWorker)
		  {
		    
			  if(id.getText().equals(emplist.employee[x].getIdno()))
			  {
			   rate.setText(null);
            hours.setText(null);
				labelMessage.setForeground(Color.RED);
            labelMessage.setText("Id number found at PieceWorker");
		      last.setText(emplist.employee[x].getLastname());
		      first.setText(emplist.employee[x].getFirstname());
		      mi.setText(emplist.employee[x].getmi());
		      age.setText(""+emplist.employee[x].getAge());
		      branch.setText(emplist.employee[x].getCompName());
			  	items.setText(""+emplist.employee[x].getNoItems());
				pay.setText(""+emplist.employee[x].getRate());
				emptype.setSelectedItem("Piece Worker");
						 
			  }
		  
	 	  if(emplist.employee[x].getgender().equals("MALE"))
		  {
		   female.setSelected(false);
		   male.setSelected(true);
	   	}
	     if(emplist.employee[x].getgender().equals("FEMALE"))
	   	{
		  male.setSelected(false);
		  female.setSelected(true);
	      }
		  }
	    }
		  }	  
		}
		}
			
    }
	
	 public void keyReleased(KeyEvent e){
	    	    //test if the inputed mi is more than 1 chracter
		 if(mi.getText().length()>1)
	 	 mi.setText(mi.getText().substring(0,1));
		 // call of the trapping method
		 trapping();
		 emptype.setSelectedItem(true);
		 				      
    
	}
	 
	 public void keyTyped(KeyEvent e){
	   	 	      
		
		 
	   }  
			//end of the keyListener	 
   // to clear all the textFields	

	 public void deleteHourly()
		 {
		      			 
			 for(int x=0;x<emplist.getcount();x++)
			 {
			   if(emplist.employee[x] instanceof HourlyEmployee)
				{
				  if(id.getText().equals(emplist.employee[x].getIdno()))
				  {
				    emplist.delete(emplist.employee[x]);
					 JOptionPane.showMessageDialog(null,"Succesfully Deleted");
					 id.setText(null);
		 		    last.setText(null);
		 			 first.setText(null);
					 mi.setText(null);
					 age.setText(null);
					 branch.setText(null);
					 hours.setText(null);
					 rate.setText(null);
					 male.setSelected(false);
					 female.setSelected(false);
					 labelMessage.setText("");
	      	  }
		 		}
			
			 }
		 
		 }
		 
		 public void  deletePiece()
		 {
		   for(int x=0;x<emplist.getcount();x++)
			 {
			   if(emplist.employee[x] instanceof PieceWorker)
				{
				  if(id.getText().equals(emplist.employee[x].getIdno()))
				  {
				    emplist.delete(emplist.employee[x]);
					 JOptionPane.showMessageDialog(null,"Succesfully Deleted");
				    id.setText(null);
					 last.setText(null);
					 first.setText(null);
					 mi.setText(null);
					 age.setText(null);
					 branch.setText(null);
					 pay.setText(null);
					 items.setText(null);
					 male.setSelected(false);
      			 female.setSelected(false);
	 	 		  }
					}
			 }
		 
		 }
	
	// to trap if the inputted data is wrong

		
	public void trapping()
	{
	  Person p=new Person();
		 //to test if mi has a digit
		 if(p.isThereADigit(mi.getText()))
		 {
		   noDigit();
		   mi.setText(null);
		 }
		 
		 //to test if last has a digit

		 if(p.isThereADigit(last.getText()))
		 {
		    noDigit();
			 last.setText(null);
		 }
		 
		 //to test if firt has a digit

		  if(p.isThereADigit(first.getText()))
		 {
		   noDigit();
         first.setText(null);
		 }
		
		 Employee emp=new PieceWorker(); 
		 
		 //to test if age  has a whitespace

		  for(int x=0;x<age.getText().length();x++)
		 {
        if(Character.isWhitespace(age.getText().charAt(x)))
		  {
		   JOptionPane.showMessageDialog(null,"Please don't type a space Character");
         age.setText(null);
        }
		 }    
           
			 // to test if age is duble
   	for(int x=0;x<age.getText().length();x++)
		 {
        if(age.getText().charAt(x)=='.')
		  {
		   JOptionPane.showMessageDialog(null,"double datatype is not allowed");
         age.setText(null);
        }
		 }    



		//to test if age has a letter

		 if(emp.isLetterFound(age.getText()))
	     {
	       noLetter();
			 age.setText(null);
		  }
		
		 
		 //to test id  
     
		
		  for(int x=0;x<id.getText().length();x++)
		 {
        if(Character.isWhitespace(id.getText().charAt(x)))
		  {
		   JOptionPane.showMessageDialog(null,"Please don't type a space Character/letter");
         id.setText(null);
        }
		 if(emp.isLetterFound(id.getText()))
		 {
		   noLetter();
	      id.setText(null);
		  }
	 
		   if(id.getText().length()>6)
		 {
		  JOptionPane.showMessageDialog(null,"ID number must contain atleast 6 characters");
		  id.setText(null);
		 }

		 }    
		      
		 //to test if hours  has a whitespace or hours is double
     
		
		  for(int x=0;x<hours.getText().length();x++)
		 {
        if(Character.isWhitespace(hours.getText().charAt(x)))
		  {
		   JOptionPane.showMessageDialog(null,"Please dont type a space Character");
         hours.setText(null);
        }
		  if(emp.isLetterFound(hours.getText()))
		 {
		  noLetter();
		  hours.setText(null);
		 }
		 }    
		 		
		 //to test if pay has a letter

		 if(emp.isLetterFound(pay.getText()))
		 {
		   noLetter();
		   pay.setText(null);
		 }
		
		 	 // to test if items is a double
   	for(int x=0;x<items.getText().length();x++)
		 {
        if(items.getText().charAt(x)=='.')
		  {
		   JOptionPane.showMessageDialog(null,"double datatype is not allowed");
         items.setText(null);
        }
		  if(emp.isLetterFound(items.getText()))
		 { 
		   noLetter();
         items.setText(null);
		 }

		 }    
		 
			 
	   //to test if rate has a letter
			 if(emp.isLetterFound(rate.getText()))
	  	 {
	     noLetter();        
		  rate.setText(null);
		 }

	  
	}
	



	 
	 public int idlenght()
	 {
	  return id.getText().length();
	 }	 
    public int lastlength()
	 {
	  return last.getText().length(); 
	 } 
	 public int firstlength()
	 {
	  return first.getText().length();
	 } 
	 public int agelength()
	 {
	  return age.getText().length();
	 }
 	 public int milength()
	 {
	  return mi.getText().length();
	 } 
	 public int branchlength()
	 {
	  return branch.getText().length();
	 }
	 public int hourslength()
	 {
	  return hours.getText().length();
	 }
	 public int itemslength()
	 {
	  return items.getText().length();
	 }
	 public int paylength()
	 {
	  return pay.getText().length();
	 }
	 public int ratelength()
	 {
	  return rate.getText().length();
	 }
	 
	public void fillUpfields()
	{
	  JOptionPane.showMessageDialog(null,"PLEASE FILL UP ALL THE FIELDS FIRST");

	}
   
	public void noDigit()
	{
	JOptionPane.showMessageDialog(null,"DON'T TYPE A DIGIT");
	}
	public void noLetter()
	{
	 JOptionPane.showMessageDialog(null,"DON'T TYPE A LETTER");
	}
  
  public void addPiece()
  {
   if(idlenght()>0)
	  {
	   if(lastlength()>0)
		{
		 if(firstlength()>0)
		 {
		  if(milength()>0)
		  {
		   if(agelength()>0)
			{
			 if(branchlength()>0)
			 {
			  if(itemslength()>0)
			  {
			   if(paylength()>0)
				{
			    if(gender!=null)
				 {	 
				 if(isIdAllDigit())
				{
		 if(!emplist.isFull())
			{
				try
		 		{
		  	String last1=last.getText();
 			String first1=first.getText();
			String mi1=mi.getText();
  			int age1=Integer.parseInt(age.getText());
  		   String idno1=id.getText();
			String position1=" ";
 		   String companyName1=branch.getText();
			int items1=Integer.parseInt(items.getText());
 			double pay1=Double.parseDouble(pay.getText());
			 empP=new PieceWorker(last1,first1,age1,mi1,gender,idno1,position1,companyName1,0,0,0,items1,pay1);
            emplist.add(empP);			
				labelMessage.setForeground(Color.RED);
            labelMessage.setText("AN EMPLOYEE IS ADDED");
				empP.display();
				emplist.countPE();
				JOptionPane.showMessageDialog(null,"SUCCESFULLY ADDED");
								
		 id.setText(null);
		 last.setText(null);
		 first.setText(null);
		 mi.setText(null);
		 age.setText(null);
		 branch.setText(null);
		 pay.setText(null);
		 items.setText(null);
		 male.setSelected(false);
       female.setSelected(false);
		 
         
        
 				}
     catch(Exception excp)
	       {
            JOptionPane.showMessageDialog(null,"no. of items must be an integer type,rate/item must be double type and age must be an integer");
           }    
	    }
	 
		 else
		 {
		   JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nMaximum number of Employee's are only 5");
		 }
		 }
		 else
		 {
		   JOptionPane.showMessageDialog(null,"ID NO. MUST BE DIGITS");
		 }
       		 
		 }
		 
		 else
		  {
		  JOptionPane.showMessageDialog(null,"Must choose a gender");
	     }					 
			}
			else
				{
				 fillUpfields();
				}
			  }
			  else
			  {
			   fillUpfields();
			  }
			 }
			 else
			 {
			 fillUpfields();
			 }
			}
			else
			{
			 fillUpfields();
			}
		  }
		  else
		  {
		   fillUpfields();
		  }
		 }
		 else
		 {
		 fillUpfields();
		 }
		}
		else
		{
		 fillUpfields();
		}
	  }
	  else
	  {
	  fillUpfields();
     }

  
  }
  
   public void addhourly()
	 {
	  if(idlenght()>0)
	  {
	   if(lastlength()>0)
		{
		 if(firstlength()>0)
		 {
		  if(milength()>0)
		  {
		   if(agelength()>0)
			{
			 if(branchlength()>0)
			 {
			  if(hourslength()>0)
			  {
			   if(ratelength()>0)
				{
				if(gender!=null)
			{
		 if(isIdAllDigit())
			{
			 if(!emplist.isFull())
			 {
			 try
		 		{
		     // HourlyEmployee empH=new HourlyEmployee(); 	
				String last1=last.getText();
 				String first1=first.getText();
		      String mi1=mi.getText();
  				int age1=Integer.parseInt(age.getText());
  			   String idno1=id.getText();
		   	String position1=" ";
 			   String companyName1=branch.getText();
				int hours1=Integer.parseInt(hours.getText());
 			   double rate1=Double.parseDouble(rate.getText());
				int over=0;			  	
        		empH=new HourlyEmployee(last1,first1,age1,mi1,gender,idno1,position1,companyName1,hours1,rate1,over,0,0);
				
            emplist.add(empH);
				labelMessage.setForeground(Color.RED);
				labelMessage.setText("An Employee is added");
            empH.display();	   
				JOptionPane.showMessageDialog(null,"Succesfully added");
								
		 id.setText(null);
		 last.setText(null);
		 first.setText(null);
		 mi.setText(null);
		 age.setText(null);
		 branch.setText(null);
		 hours.setText(null);
		 rate.setText(null);
		 male.setSelected(false);
		 female.setSelected(false);

   			}
     catch(Exception excp)
	       {
            JOptionPane.showMessageDialog(null,"HoursWorked must be an integer type,pay rate must be a double type and age must be an integer");
           } 
      }
		else
		{
		  JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nMaximum number of Employee's are only 5");
   	}
		}
		else
		{
		  JOptionPane.showMessageDialog(null,"Id must be all digits");
		}
	  
     }
   	else
		{
		 JOptionPane.showMessageDialog(null,"Must choose a gender");
		}

				}
				else
				{
				 fillUpfields();
				}
			  }
			  else
			  {
			   fillUpfields();
			  }
			 }
			 else
			 {
			 fillUpfields();
			 }
			}
			else
			{
			 fillUpfields();
			}
		  }
		  else
		  {
		   fillUpfields();
		  }
		 }
		 else
		 {
		 fillUpfields();
		 }
		}
		else
		{
		 fillUpfields();
		}
	  }
	  else
	  {
	  fillUpfields();
     }
	 }
  
  


  public boolean isfound()
  {
    boolean result=false;
	  for(int x=0;x<emplist.getcount();x++)
	  {
	    if(emplist.employee[x] instanceof HourlyEmployee)
		 {
		  if(id.getText().equals(emplist.employee[x].getIdno()))
		  {
		   result=true;
			break;
		  }
		  else
		  {
		   result=false;
		  }
		 }
		 
		if(emplist.employee[x] instanceof PieceWorker)
		{
		 if(id.getText().equals(emplist.employee[x].getIdno()))
		 {
		  result=true;
		  break;
		 }
		 else
		 {
		  result=false;
		 }
		}
	  }	 
	 return result;
  }
	
	   
  	 
	 
	 public boolean isIdAllDigit()
	 {
	   boolean result=false;
		for(int x=0;x<idlenght();x++)
		{
		  if(Character.isDigit(id.getText().charAt(x)))
		  {
		   result=true;
		  }
		  else
		  {
		   result=false;
			break;
		  }
		}
	   return result;
	 }
  
	 //main
	 public static void main(String []args){
	   
	//  new EmployeeEntry();
 EmployeeEntry entry = new   EmployeeEntry();
     Employee s1, s2,s3;
     EmployeeList  emp = new  EmployeeList();
   	      s1 = new Employee( last);
   	      s2 = new Employee( first);
   	      s3 = new Employee( id);
   	      entry.add(s1);
   	      entry.add(s2);
   	      entry.add(s3);
   	      emp.addToFile(entry);
   	      //read data from file  
   	    EmployeeList emp = entry.readFile();
   	      display(emp);  
 } 
 
	 }
 
		 //end of main
 
 
 
 
 
 // end of the class

Can some one help me how to figured it out...

Recommended Answers

All 6 Replies

and your question is

cannot figure it out..what I did wrong..What I did wrong to that..I was stuck on here...

sorry you'll hate my person

no, no, don't do it that, maybe somebody has online compilator with/for unpublished methods, sooo maybe somebody has another ..., I think that this code doesn't work by ..., never in this form

my advide split that

a/ GUI
1/ don't extends main Class with JFrame & Listeners too, that's for JavaExampleDepot
2/ GUI passing Listeners to JComponents (well I see public void actionPerformed(ActionEvent e) {)
3/ your Gui probably freeze

b/ services

1/ for long task (there I see something about File) you have to use backGround task

c/ programing logics == sure equals skils

what you are tried with semaphore methods

public void addPiece() {
public void addhourly() {
....

you have a lot of time and patience with that

1000 lines of code, and you ask how to fix it? Have you not tested your program as you wrote the thing? Please come back when you have a snippet of your exact problem. This isn't your personal debugging community.

import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
 import java.io.*;

 public class EmployeeEntry extends JFrame implements ActionListener,  KeyListener,ItemListener , Serializable
 {
         JTextField id, last,first,mi,age,branch,hours,pay,items,rate;
            JRadioButton male,female;
            JComboBox emptype;
            JButton add,delete, back;
            JPanel p1,p2,p3,p4,p5,p6,p7;
           JPanel p1_1,p1_2, p2_1,p2_2, p3_1,p4_1, p4_2,p5_1,p5_2,p6_1,p6_2,p7_1;
            JLabel message;
            String gender;
         EmployeeList emplist=new EmployeeList();
            Employee empH=new HourlyEmployee();
            Employee empP=new PieceWorker();
            Employee [] employee;
            MainMenu menu;
            ObjectInputStream instream;
            ObjectOutputStream outstream;
            File file;





            public void instantiate()
            {
                id=new JTextField(10);
                id.addKeyListener(new KeyListener(){
                public void keyPressed(KeyEvent e){
             message.setText("");
                     }
                 public void keyReleased(KeyEvent e){}
                 public void keyTyped(KeyEvent e){}
                });

                id.addKeyListener(this);


                last=new JTextField(15);
                first=new JTextField(15);
                age=new JTextField(3);
                mi=new JTextField(2);
                branch=new JTextField(20);
                hours=new JTextField(10);
                pay=new JTextField(12);
                items=new JTextField(10);
                rate=new JTextField(13);
            male=new JRadioButton();
                female=new JRadioButton();
                String [] combo={"----------------------------------------","Hourly Employee", "Piece Worker"};
                emptype=new JComboBox(combo);
                add=new JButton("ADD");
                delete=new JButton("DELETE");
                back=new JButton("BACK TO MAIN");
                message=new JLabel();
            p1=new JPanel();
                p2=new JPanel();
                p3=new JPanel();
                p4=new JPanel();
                p5=new JPanel();
                p6=new JPanel();
                p7=new JPanel();
                Container pane = getContentPane();
            pane.setLayout(new GridLayout(8,0));               
                pane.add(p1);
            pane.add(p2);
                pane.add(p3);
                pane.add(p4);
                pane.add(p5);
                pane.add(p6);
                pane.add(p7);

            }



    public EmployeeEntry()
    {
               super("Employee Entry");
                this.instantiate();                             

               FlowLayout flow = new FlowLayout();
             flow.setAlignment(FlowLayout.LEFT);
                   p1.setLayout(new GridLayout(2,2));
                    p2.setLayout(new GridLayout(1,2));
                  p3.setLayout(flow);
                    p4.setLayout(new GridLayout(1,2));
                    p5.setLayout(new GridLayout(1,2));
                    p6.setLayout(new GridLayout(1,2));
                    p7.setLayout(new FlowLayout()); 

                     p1_1=new JPanel();
                 p1_2=new JPanel();
                     p2_1=new JPanel();
                     p2_2=new JPanel();
                     p3_1=new JPanel();
                     p4_1=new JPanel();
                     p4_2=new JPanel();
                     p5_1=new JPanel();
                p5_2=new JPanel();  
                     p6_1=new JPanel();
                     p6_2=new JPanel();
                     p7_1=new JPanel();




                      p4_1.setBackground(Color.GRAY);
                 p5_1.setBackground(Color. GRAY);
                 p6_1.setBackground(Color. GRAY);

                      p4_2.setBackground(Color. GRAY);
                 p5_2.setBackground(Color. GRAY);
                 p6_2.setBackground(Color. GRAY);

                     FlowLayout low = new FlowLayout();
                 low.setAlignment(FlowLayout.LEFT);
                     p1_1.setLayout(low);
                     p1_2.setLayout(low);
                     p2_1.setLayout(low);
                     p2_2.setLayout(new FlowLayout());
                     p4_1.setLayout(low);

                     p5_1.setLayout(low);
                     p5_2.setLayout(new FlowLayout());

                     p6_1.setLayout(low);
                    p6_2.setLayout(new FlowLayout());
                FlowLayout low2 = new FlowLayout();
                 low2.setAlignment(FlowLayout.RIGHT); 
                     p4_2.setLayout(new FlowLayout());
                     p3_1.setLayout(low2);

                     p7_1.setLayout(new FlowLayout());
                p1_1.add(new JLabel("ID NUMBER "));
                     p1_1.add(id);  
                     p1_1.add(message);
                p1.add(p1_1);
                     p1_2.add(new JLabel("LASTNAME"));
                     p1_2.add(last);
                     p1_2.add(new JLabel("FIRSTNAME"));
                     p1_2.add(first);
                     p1_2.add(new JLabel("MI"));
                     p1_2.add(mi);
                     p1.add(p1_2);  
                     p2_1.add(new JLabel("AGE"));
                     p2_1.add(age);
                     p2.add(p2_1);
                     p2_2.add(new JLabel("GENDER"));
                     p2_2.add(male);
                     p2_2.add(new JLabel("Male"));
                     p2_2.add(female);
                     p2_2.add(new JLabel("Female"));
                     p2.add(p2_2);                   
                     p3_1.add(new JLabel("BRANCH"));
                     p3_1.add(branch);
                     p3_1.add(new JLabel("Employee Type"));
                     p3_1.add(emptype);
                     p3.add(p3_1);
                     p4_1.add(new JLabel("Hourly Employee"));
                     p4.add(p4_1);
                     p4_2.add(new JLabel("Piece Worker"));
                     p4.add(p4_2);
                     p5_1.add(new JLabel("hours worked"));
                     p5_1.add(hours);
                     p5.add(p5_1);
                     p5_2.add(new JLabel("no. of items"));
                     p5_2.add(items);
                p5.add(p5_2);
                     p6_1.add(new JLabel("pay rate"));
                     p6_1.add(rate);
                     p6.add(p6_1);
                     p6_2.add(new JLabel("rate/item"));
                     p6_2.add(pay);
                     p6.add(p6_2);
                     p7_1.add(add);
                     p7_1.add(delete);
                     p7_1.add(back);
                     p7.add(p7_1);
                     this.addactions();
                     p4_1.setVisible(false);
                 p5_1.setVisible(false);
                 p6_1.setVisible(false);    
                 p4_2.setVisible(false);
                 p5_2.setVisible(false);
                 p6_2.setVisible(false);    


                setSize(590,420);
               setVisible(true);
               setResizable(false);
            setDefaultCloseOperation(EXIT_ON_CLOSE); 
                setLocation(300,100);
            delete.setEnabled(false);


            }


         public void addactions(){
           emptype.addActionListener(this);
            back.addActionListener(this);
            delete.addActionListener(this);
            add.addActionListener(this);
            mi.addKeyListener(this);
            id.addKeyListener(this);
            last.addKeyListener(this);
            age.addKeyListener(this);
            first.addKeyListener(this);
            hours.addKeyListener(this);
            pay.addKeyListener(this);
            items.addKeyListener(this);
            rate.addKeyListener(this);
            male.addItemListener(this);
            female.addItemListener(this);

            } 

        public void itemStateChanged(ItemEvent item)
        {
          Object it=item.getSource();
          int select=item.getStateChange();

             if(it==male)
             {

              if(select==ItemEvent.SELECTED)
              {
                gender="MALE";
                 female.setEnabled(false);
              }
              else
              {
               gender=null;
                female.setEnabled(true);
              }

             }  

            if(it==female)   
             {
              if(select==ItemEvent.SELECTED)
              {  
                gender="FEMALE";
                male.setEnabled(false);
              }
              else
              {
               gender=null;
                male.setEnabled(true);
              }
             }

                }

    public void actionPerformed(ActionEvent e)
    {

       if(e.getSource()==add&&emptype.getSelectedItem()=="----------------------------------------")
        {
        JOptionPane.showMessageDialog(null,"PLEASE choose an EMPLOYEE TYPE!!");
        }   


        if(e.getSource()==back)
        {
          new MainMenu();
          setVisible(false);
        }

        if(e.getSource()==delete&&emptype.getSelectedItem()=="Hourly Employee")
         {
          int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
          if(del2==JOptionPane.YES_OPTION)
            deleteHourly();     
        }   
        if(e.getSource()==delete&&emptype.getSelectedItem()=="Piece Worker")
        {
          int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
          if(del2==JOptionPane.YES_OPTION)
        deletePieceWorker();
        }
         if(e.getSource()==delete&&emptype.getSelectedItem()=="----------------------------------------")
        {
        JOptionPane.showMessageDialog(null,"Must choose the appropriate Employee Type\nwhere the id number is located");
        }


         if(e.getSource()==add&&emptype.getSelectedItem()=="Piece Worker")
         {


            if(idlenght()==6)
            {        
                     emptype.setSelectedItem("----------------------------------------");
                     addPieceWorker();

            }
            else
            {   
                JOptionPane.showMessageDialog(null,"ID NO. Should not be lesser than 6 digit ");
            }

      }

         if(e.getSource()==add&&emptype.getSelectedItem()=="Hourly Employee")
        {
            if(idlenght()==6)
            { 

                 emptype.setSelectedItem("----------------------------------------");   
                 addhourly(); 

            }
            else
            {
                JOptionPane.showMessageDialog(null,"ID no MUST be SIX DIGIT!!");
            }
        }



        if(emptype.getSelectedItem()=="Hourly Employee")
        {
         p4_2.setVisible(false);
        p5_2.setVisible(false);
        p6_2.setVisible(false); 
         p4_1.setVisible(true);
         p5_1.setVisible(true);
         p6_1.setVisible(true); 
        }

      if(emptype.getSelectedItem()=="Piece Worker")
        {
         p4_1.setVisible(false);
        p5_1.setVisible(false);
        p6_1.setVisible(false); 
         p4_2.setVisible(true);
         p5_2.setVisible(true);
         p6_2.setVisible(true); 
        }

        if(emptype.getSelectedItem()=="----------------------------------------")
        {
                  p4_1.setVisible(false);
                 p5_1.setVisible(false);
                 p6_1.setVisible(false);    
                 p4_2.setVisible(false);
                 p5_2.setVisible(false);
                 p6_2.setVisible(false);    
        }
  } 

     public void keyPressed(KeyEvent e)
     {

         if(idlenght()>0)
         { 
          if(e.getKeyCode()==KeyEvent.VK_ENTER)
         {

          if(!isfound())
          {
           message.setForeground(Color.RED);  
            message.setText("ID IS NOT FOUND");
           last.setText(null);
            first.setText(null);
           mi.setText(null);
           age.setText(null);
           branch.setText(null);
           hours.setText(null);
           rate.setText(null);
           male.setSelected(false);
           female.setSelected(false);
            delete.setSelected(false);

                  }

   if(isfound())
          {
           delete.setEnabled(true);

        for(int i=0;i<emplist.getcount();i++)
         {

         if(emplist.employee[i] instanceof HourlyEmployee)
          {
            if(id.getText().equals(emplist.employee[i].getIdno()))
         {  
          items.setText(null);
         pay.setText(null);     
          message.setForeground(Color.RED);
        message.setText("Id number is found");
          last.setText(emplist.employee[i].getLastname());
          first.setText(emplist.employee[i].getFirstname());
          mi.setText(emplist.employee[i].getmi());
          age.setText(""+emplist.employee[i].getAge());
          branch.setText(emplist.employee[i].getCompName());
          rate.setText(""+emplist.employee[i].getPerHour());
        hours.setText(""+emplist.employee[i].getHours());
        emptype.setSelectedItem("Hourly Employee"); 

        if(emplist.employee[i].getgender().equals("MALE"))
        {
          male.setSelected(true);
       female.setSelected(false);
        }
        if(emplist.employee[i].getgender().equals("FEMALE"))

        {
         male.setSelected(false);
       female.setSelected(true);
        }
           }


            }

        if(emplist.employee[i] instanceof PieceWorker)
          {

              if(id.getText().equals(emplist.employee[i].getIdno()))
              {
               rate.setText(null);
            hours.setText(null);
                message.setForeground(Color.RED);
            message.setText("Id number is found");
              last.setText(emplist.employee[i].getLastname());
              first.setText(emplist.employee[i].getFirstname());
              mi.setText(emplist.employee[i].getmi());
              age.setText(""+emplist.employee[i].getAge());
              branch.setText(emplist.employee[i].getCompName());
                items.setText(""+emplist.employee[i].getNoItems());
                pay.setText(""+emplist.employee[i].getRate());
                emptype.setSelectedItem("Piece Worker");

              }

          if(emplist.employee[i].getgender().equals("MALE"))
          {
           female.setSelected(false);
           male.setSelected(true);
        }
         if(emplist.employee[i].getgender().equals("FEMALE"))
        {
          male.setSelected(false);
          female.setSelected(true);
          }
          }
        }
          }   
        }
        }

    }

     public void keyReleased(KeyEvent e)
     {      
         if(mi.getText().length()>1)
         mi.setText(mi.getText().substring(0,1));
         gettrap();
         emptype.setSelectedItem(true);
        //readObjectToFile(emplist); 

    }

     public void keyTyped(KeyEvent e){ }  

     public void deleteHourly()
         {

             for(int i=0;i<emplist.getcount();i++)
             {
               if(emplist.employee[i] instanceof HourlyEmployee)
                {
                  if(id.getText().equals(emplist.employee[i].getIdno()))
                  {
                    emplist.delete(emplist.employee[i]);
                     JOptionPane.showMessageDialog(null,"Succesfully Deleted");
                     id.setText(null);
                    last.setText(null);
                     first.setText(null);
                     mi.setText(null);
                     age.setText(null);
                     branch.setText(null);
                     hours.setText(null);
                     rate.setText(null);
                     male.setSelected(false);
                     female.setSelected(false);
                     message.setText("");
              }
                }

             }

         }

         public void  deletePieceWorker()
         {
           for(int i=0;i<emplist.getcount();i++)
             {
               if(emplist.employee[i] instanceof PieceWorker)
                {
                  if(id.getText().equals(emplist.employee[i].getIdno()))
                  {
                    emplist.delete(emplist.employee[i]);
                     JOptionPane.showMessageDialog(null,"Succesfully Deleted");
                    id.setText(null);
                     last.setText(null);
                     first.setText(null);
                     mi.setText(null);
                     age.setText(null);
                     branch.setText(null);
                     pay.setText(null);
                     items.setText(null);
                     male.setSelected(false);
                 female.setSelected(false);
                  }
                    }
             }

         }

            public void addObjectToFile(EmployeeList list){
        try{
            File file  = new File("employee.txt");
            FileOutputStream os = new FileOutputStream(file);
            outstream = new ObjectOutputStream(os);
            outstream.writeObject(list);
            System.out.println("object written to file");
            }
        catch(FileNotFoundException fn){
            File file  = new File("employee.txt");
            }
        catch(IOException ioe){
            ioe.printStackTrace();
        }
        finally{
           try{
              outstream.close();
           }
           catch(IOException io){
                JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT CLOSE!!!");
              }
            }

        }



    public void gettrap()
    {
      Person p=new Person();
          if(p.isThereADigit(mi.getText()))
         {
           noDigit();
           mi.setText(null);
         }

         if(p.isThereADigit(last.getText()))
         {
            noDigit();
             last.setText(null);
         }

          if(p.isThereADigit(first.getText()))
         {
           noDigit();
         first.setText(null);
         }

         Employee emp=new PieceWorker(); 

          for(int i=0;i<age.getText().length();i++)
         {
        if(Character.isWhitespace(age.getText().charAt(i)))
          {
           JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         age.setText(null);
        }
         }    

    for(int i=0;i<age.getText().length();i++)
         {
        if(age.getText().charAt(i)=='-')
          {
           JOptionPane.showMessageDialog(null,"Entering a negative number is not allowed!");
         age.setText(null);
        }
         }    

        if(emp.isLetterFound(age.getText()))
         {
           noLetter();
             age.setText(null);
          }

          for(int i=0;i<id.getText().length();i++)
         {
        if(Character.isWhitespace(id.getText().charAt(i)))
          {
           JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         id.setText(null);
        }
         if(emp.isLetterFound(id.getText()))
         {
           noLetter();
          id.setText(null);
          }
           if(id.getText().length()>6)
         {
          JOptionPane.showMessageDialog(null,"ID number must Be 6 Digit!!!");
          id.setText(null);
         }

         }    

          for(int i=0;i<hours.getText().length();i++)
         {
        if(Character.isWhitespace(hours.getText().charAt(i)))
          {
           JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         hours.setText(null);
        }
          if(emp.isLetterFound(hours.getText()))
         {
          noLetter();
          hours.setText(null);
         }
         }    

          if(emp.isLetterFound(pay.getText()))
         {
           noLetter();
           pay.setText(null);
         }

         for(int i=0;i<items.getText().length();i++)
         {
        if(items.getText().charAt(i)=='.')
          {
           JOptionPane.showMessageDialog(null,"double datatype is not allowed");
         items.setText(null);
        }
          if(emp.isLetterFound(items.getText()))
            { 
           noLetter();
         items.setText(null);
            }

         }    

        if(emp.isLetterFound(rate.getText()))
         {
         noLetter();        
          rate.setText(null);
         }    
    }

     public int idlenght()
     {
      return id.getText().length();
     }   
    public int lastlength()
     {
      return last.getText().length(); 
     } 
     public int firstlength()
     {
      return first.getText().length();
     } 
     public int agelength()
     {
      return age.getText().length();
     }
     public int milength()
     {
      return mi.getText().length();
     } 
     public int branchlength()
     {
      return branch.getText().length();
     }
     public int hourslength()
     {
      return hours.getText().length();
     }
     public int itemslength()
     {
      return items.getText().length();
     }
     public int paylength()
     {
      return pay.getText().length();
     }
     public int ratelength()
     {
      return rate.getText().length();
     }

    public void applytrap()
    {
      JOptionPane.showMessageDialog(null,"PLEASE FILL UP ALL THE FIELDS FIRST");

    }

    public void noDigit()
    {
    JOptionPane.showMessageDialog(null,"It MUST be a LETTER!!");
    }
    public void noLetter()
    {
     JOptionPane.showMessageDialog(null,"It MUST be a NUMBER");
    }

  public void addPieceWorker()
  {
    if(idlenght()==6)
    {
   if(idlenght()>0)
      {
       if(lastlength()>0)
        {
         if(firstlength()>0)
         {
          if(milength()>0)
          {
           if(agelength()>0)
            {
             if(branchlength()>0)
             {
              if(itemslength()>0)
              {
               if(paylength()>0)
                {
                if(gender!=null)
                 {   
                 if(isIdAllDigit())
                {
         if(!emplist.isFull())
            {
                try
                {
            String last1=last.getText();
            String first1=first.getText();
            String mi1=mi.getText();
            int age1=Integer.parseInt(age.getText());
           String idno1=id.getText();
            String position1=" ";
           String companyName1=branch.getText();
            int items1=Integer.parseInt(items.getText());
            double pay1=Double.parseDouble(pay.getText());
             empP=new PieceWorker(last1,first1,age1,mi1,gender,idno1,position1,companyName1,0,0,0,items1,pay1);
            emplist.add(empP);
                addObjectToFile(emplist);
                message.setForeground(Color.RED);
            message.setText("ONE Employee ADDED");
                empP.display();
                emplist.countPE();
                JOptionPane.showMessageDialog(null,"SUCCESFULLY ADDED");

         id.setText(null);
         last.setText(null);
         first.setText(null);
         mi.setText(null);
         age.setText(null);
         branch.setText(null);
         pay.setText(null);
         items.setText(null);
         male.setSelected(false);
       female.setSelected(false);         

                }

                catch(Exception excp)
              {
            JOptionPane.showMessageDialog(null,"Please Retype!!!");
           }    
        }
         else
         {
           JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nMaximum number of Employee's are only 5");
         }
         }
         else
         {
           JOptionPane.showMessageDialog(null,"ID no. MUST BE NUMBER!!");
         }

         }

         else
          {
          JOptionPane.showMessageDialog(null,"Oppss... Dont Forget the GENDER!!!!");
         }                   
            }
            else
                {
                applytrap();
                }
              }
              else
              {
               applytrap();
              }
             }
             else
             {
                 applytrap();
             }
            }
            else
            {
              applytrap();
            }
          }
          else
          {
            applytrap();
          }
         }
         else
         {
             applytrap();
         }
        }
        else
        {
          applytrap();
        }
      }
      else
      {
       applytrap();

        }   

     }
    else
    {
        JOptionPane.showMessageDialog(null,"ID no. MuSt be SIX digits!!");
    }
  }

     public boolean isIdAllDigit()
     {
       boolean result=false;
        for(int i=0;i<idlenght();i++)
        {
          if(Character.isDigit(id.getText().charAt(i)))
          {
           result=true;
          }
          else
          {
           result=false;
            break;
          }
        }
       return result;
     }



   public void addhourly()
     {
      if(idlenght()>0)
      {
       if(lastlength()>0)
        {
         if(firstlength()>0)
         {
          if(milength()>0)
          {
           if(agelength()>0)
            {
             if(branchlength()>0)
             {
              if(hourslength()>0)
              {
               if(ratelength()>0)
                {
                if(gender!=null)
            {
         if(isIdAllDigit())
            {
             if(!emplist.isFull())
             {
             try
                {   
                String last1=last.getText();
                String first1=first.getText();
              String mi1=mi.getText();
                int age1=Integer.parseInt(age.getText());
               String idno1=id.getText();
            String position1=" ";
               String companyName1=branch.getText();
                int hours1=Integer.parseInt(hours.getText());
               double rate1=Double.parseDouble(rate.getText());
                int over=0;             
                empH=new HourlyEmployee(last1,first1,age1,mi1,gender,idno1,position1,companyName1,hours1,rate1,over,0,0);

                addObjectToFile(emplist);
                JOptionPane.showMessageDialog(null,"Succesfully Written in the file");
            emplist.add(empH);
                message.setForeground(Color.RED);
                message.setText("ONE Employee is ADDED");
            empH.display();    
                JOptionPane.showMessageDialog(null,"Succesfully added");

         id.setText(null);
         last.setText(null);
         first.setText(null);
         mi.setText(null);
         age.setText(null);
         branch.setText(null);
         hours.setText(null);
         rate.setText(null);
         male.setSelected(false);
         female.setSelected(false);

            }
             catch(Exception excp)
           {
            JOptionPane.showMessageDialog(null,"HoursWorked must be an integer type,pay rate must be a double type and age must be an integer");
           } 
      }
        else
        {
          JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nYou Can ONLY ADD 5 EMPLOYEES");
    }
        }
        else
        {
          JOptionPane.showMessageDialog(null,"Id must be all NUMBER!!");
        }

     }
    else
        {
         JOptionPane.showMessageDialog(null,"Opps! Dont forget the gender!!!");
        }

                }
                else
                {
                 applytrap();
                }
              }
              else
              { 
              applytrap();
              }
             }
             else
             {
                 applytrap();
             }
            }
            else
            {
             applytrap();
            }
          }
          else
          {
           applytrap();
          }
         }
         else
         { 
         applytrap();
         }
        }
        else
        {
         applytrap();
        }
      }
      else
      { 
      applytrap();
     }
     }




  public boolean isfound()
  {
    boolean result=false;
      for(int i=0;i<emplist.getcount();i++)
      {
        if(emplist.employee[i] instanceof HourlyEmployee)
         {
          if(id.getText().equals(emplist.employee[i].getIdno()))
          {
           result=true;
            break;
          }
          else
          {
           result=false;
          }
         }

        if(emplist.employee[i] instanceof PieceWorker)
        {
         if(id.getText().equals(emplist.employee[i].getIdno()))
         {
          result=true;
          break;
         }
         else
         {
          result=false;
         }
        }
      }  
     return result;
  }

     public static void main(String []args)
     {
        new EmployeeEntry();
     }
   }
/*    public void addObjectToFile(EmployeeList list){
        try{
            File file  = new File("employee.txt");
            FileOutputStream os = new FileOutputStream(file);
            outstream = new ObjectOutputStream(os);
            outstream.writeObject(list);
            System.out.println("object written to file");
            }
        catch(FileNotFoundException fn){
            File file  = new File("employee.txt");
            }
        catch(IOException ioe){
            ioe.printStackTrace();
        }
        finally{
           try{
              outstream.close();
           }
           catch(IOException io){
                JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT CLOSE!!!");
              }
            }

        }
    */
/*    public EmployeeList readObjectFromFile(){
        EmployeeList  list = new EmployeeList();
        try{
            FileInputStream is = new FileInputStream("employee.txt");
            instream = new ObjectInputStream(is);
            //read object from file
               list = (EmployeeList)instream.readObject();
            }
        catch(ClassNotFoundException cn){
                JOptionPane.showMessageDialog(null,"Oppss...The Class was not Found!!!");
        }
        catch(FileNotFoundException fn){
                JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT Found!!");
        }
        catch(IOException io){}
        finally{
            try{
               instream.close();
              }
              catch(IOException io){
                JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT CLOSE!!!");
              }
            }
          return list;
        }

 }*/

Can someone suggest me how to add the update on my program, and how to read the object i entered because the the writetofile object is already working but the readtofile is not working yet ..especially the update how to do it...

import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
 import java.io.*;
 
 public class EmployeeEntry extends JFrame implements ActionListener,  KeyListener,ItemListener , Serializable
 {
         JTextField id, last,first,mi,age,branch,hours,pay,items,rate;
			JRadioButton male,female;
			JComboBox emptype;
			JButton add,delete, back;
			JPanel p1,p2,p3,p4,p5,p6,p7;
		   JPanel p1_1,p1_2, p2_1,p2_2, p3_1,p4_1, p4_2,p5_1,p5_2,p6_1,p6_2,p7_1;
			JLabel message;
			String gender;
         EmployeeList emplist=new EmployeeList();
			Employee empH=new HourlyEmployee();
			Employee empP=new PieceWorker();
			Employee [] employee;
			MainMenu menu;
			ObjectInputStream instream;
 			ObjectOutputStream outstream;
  			File file;

			
			
		
			
			public void instantiate()
			{
			  	id=new JTextField(10);
				id.addKeyListener(new KeyListener(){
  				public void keyPressed(KeyEvent e){
   			 message.setText("");
 					 }
 				 public void keyReleased(KeyEvent e){}
 				 public void keyTyped(KeyEvent e){}
				});

				id.addKeyListener(this);
			
				
				last=new JTextField(15);
				first=new JTextField(15);
				age=new JTextField(3);
				mi=new JTextField(2);
				branch=new JTextField(20);
				hours=new JTextField(10);
				pay=new JTextField(12);
				items=new JTextField(10);
				rate=new JTextField(13);
          	male=new JRadioButton();
				female=new JRadioButton();
				String [] combo={"----------------------------------------","Hourly Employee", "Piece Worker"};
				emptype=new JComboBox(combo);
				add=new JButton("ADD");
				delete=new JButton("DELETE");
				back=new JButton("BACK TO MAIN");
				message=new JLabel();
            p1=new JPanel();
				p2=new JPanel();
				p3=new JPanel();
				p4=new JPanel();
				p5=new JPanel();
				p6=new JPanel();
				p7=new JPanel();
			  	Container pane = getContentPane();
           	pane.setLayout(new GridLayout(8,0));               
				pane.add(p1);
		   	pane.add(p2);
				pane.add(p3);
				pane.add(p4);
				pane.add(p5);
				pane.add(p6);
				pane.add(p7);
									
			}
			
			
			
	public EmployeeEntry()
	{
			   super("Employee Entry");
				this.instantiate();								
    
			   FlowLayout flow = new FlowLayout();
	         flow.setAlignment(FlowLayout.LEFT);
			  	   p1.setLayout(new GridLayout(2,2));
					p2.setLayout(new GridLayout(1,2));
			      p3.setLayout(flow);
					p4.setLayout(new GridLayout(1,2));
					p5.setLayout(new GridLayout(1,2));
					p6.setLayout(new GridLayout(1,2));
					p7.setLayout(new FlowLayout());	
						
					 p1_1=new JPanel();
           		 p1_2=new JPanel();
					 p2_1=new JPanel();
					 p2_2=new JPanel();
					 p3_1=new JPanel();
					 p4_1=new JPanel();
					 p4_2=new JPanel();
					 p5_1=new JPanel();
                p5_2=new JPanel();	
					 p6_1=new JPanel();
					 p6_2=new JPanel();
					 p7_1=new JPanel();
					

                

					  p4_1.setBackground(Color.GRAY);
                 p5_1.setBackground(Color. GRAY);
                 p6_1.setBackground(Color. GRAY);
                  
					  p4_2.setBackground(Color. GRAY);
                 p5_2.setBackground(Color. GRAY);
                 p6_2.setBackground(Color. GRAY);

					 FlowLayout low = new FlowLayout();
	             low.setAlignment(FlowLayout.LEFT);
					 p1_1.setLayout(low);
					 p1_2.setLayout(low);
					 p2_1.setLayout(low);
					 p2_2.setLayout(new FlowLayout());
					 p4_1.setLayout(low);

					 p5_1.setLayout(low);
					 p5_2.setLayout(new FlowLayout());

					 p6_1.setLayout(low);
				    p6_2.setLayout(new FlowLayout());
                FlowLayout low2 = new FlowLayout();
	             low2.setAlignment(FlowLayout.RIGHT); 
					 p4_2.setLayout(new FlowLayout());
					 p3_1.setLayout(low2);

					 p7_1.setLayout(new FlowLayout());
                p1_1.add(new JLabel("ID NUMBER "));
					 p1_1.add(id);	
					 p1_1.add(message);
                p1.add(p1_1);
					 p1_2.add(new JLabel("LASTNAME"));
			 		 p1_2.add(last);
					 p1_2.add(new JLabel("FIRSTNAME"));
					 p1_2.add(first);
					 p1_2.add(new JLabel("MI"));
					 p1_2.add(mi);
					 p1.add(p1_2);	
					 p2_1.add(new JLabel("AGE"));
					 p2_1.add(age);
					 p2.add(p2_1);
					 p2_2.add(new JLabel("GENDER"));
					 p2_2.add(male);
					 p2_2.add(new JLabel("Male"));
					 p2_2.add(female);
					 p2_2.add(new JLabel("Female"));
					 p2.add(p2_2);					 
					 p3_1.add(new JLabel("BRANCH"));
					 p3_1.add(branch);
					 p3_1.add(new JLabel("Employee Type"));
					 p3_1.add(emptype);
					 p3.add(p3_1);
					 p4_1.add(new JLabel("Hourly Employee"));
					 p4.add(p4_1);
					 p4_2.add(new JLabel("Piece Worker"));
					 p4.add(p4_2);
					 p5_1.add(new JLabel("hours worked"));
					 p5_1.add(hours);
					 p5.add(p5_1);
					 p5_2.add(new JLabel("no. of items"));
					 p5_2.add(items);
                p5.add(p5_2);
					 p6_1.add(new JLabel("pay rate"));
					 p6_1.add(rate);
					 p6.add(p6_1);
					 p6_2.add(new JLabel("rate/item"));
					 p6_2.add(pay);
					 p6.add(p6_2);
					 p7_1.add(add);
					 p7_1.add(delete);
					 p7_1.add(back);
					 p7.add(p7_1);
					 this.addactions();
					 p4_1.setVisible(false);
	             p5_1.setVisible(false);
	             p6_1.setVisible(false);	
	             p4_2.setVisible(false);
	         	 p5_2.setVisible(false);
	          	 p6_2.setVisible(false);	
 
	 								
				setSize(590,420);
			   setVisible(true);
			   setResizable(false);
            setDefaultCloseOperation(EXIT_ON_CLOSE); 
				setLocation(300,100);
            delete.setEnabled(false);
			
			
			}
		 
		 
		 public void addactions(){
		   emptype.addActionListener(this);
			back.addActionListener(this);
			delete.addActionListener(this);
			add.addActionListener(this);
			mi.addKeyListener(this);
			id.addKeyListener(this);
			last.addKeyListener(this);
			age.addKeyListener(this);
			first.addKeyListener(this);
			hours.addKeyListener(this);
			pay.addKeyListener(this);
			items.addKeyListener(this);
			rate.addKeyListener(this);
			male.addItemListener(this);
			female.addItemListener(this);
			
		  	} 
		
		public void itemStateChanged(ItemEvent item)
		{
		  Object it=item.getSource();
		  int select=item.getStateChange();
		    
			 if(it==male)
			 {
			  
			  if(select==ItemEvent.SELECTED)
			  {
			    gender="MALE";
				 female.setEnabled(false);
			  }
			  else
			  {
			   gender=null;
				female.setEnabled(true);
			  }
			  
			 }	
			
			if(it==female)	 
			 {
			  if(select==ItemEvent.SELECTED)
			  {  
				gender="FEMALE";
				male.setEnabled(false);
			  }
			  else
			  {
			   gender=null;
				male.setEnabled(true);
			  }
			 }
			
				}
		
 	public void actionPerformed(ActionEvent e)
	{
	  	
	   if(e.getSource()==add&&emptype.getSelectedItem()=="----------------------------------------")
		{
		JOptionPane.showMessageDialog(null,"PLEASE choose an EMPLOYEE TYPE!!");
    	}	
		
			
		if(e.getSource()==back)
		{
		  new MainMenu();
		  setVisible(false);
		}
		
		if(e.getSource()==delete&&emptype.getSelectedItem()=="Hourly Employee")
		 {
		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
		  if(del2==JOptionPane.YES_OPTION)
			deleteHourly();		
	    }   
		if(e.getSource()==delete&&emptype.getSelectedItem()=="Piece Worker")
		{
		  int del2= JOptionPane.showConfirmDialog(null,"Are you sure you want to delete?");
		  if(del2==JOptionPane.YES_OPTION)
        deletePieceWorker();
		}
		 if(e.getSource()==delete&&emptype.getSelectedItem()=="----------------------------------------")
		{
	    JOptionPane.showMessageDialog(null,"Must choose the appropriate Employee Type\nwhere the id number is located");
  		}

		
		 if(e.getSource()==add&&emptype.getSelectedItem()=="Piece Worker")
		 {
 

			if(idlenght()==6)
			{		 
					 emptype.setSelectedItem("----------------------------------------");
					 addPieceWorker();
				 
			}
			else
			{	
				JOptionPane.showMessageDialog(null,"ID NO. Should not be lesser than 6 digit ");
			}
			 		 
      }
		  
		 if(e.getSource()==add&&emptype.getSelectedItem()=="Hourly Employee")
		{
			if(idlenght()==6)
			{ 
					
				 emptype.setSelectedItem("----------------------------------------");   
        	 	 addhourly(); 
				     
			}
			else
			{
				JOptionPane.showMessageDialog(null,"ID no MUST be SIX DIGIT!!");
			}
		}
		
  	
	
		if(emptype.getSelectedItem()=="Hourly Employee")
		{
		 p4_2.setVisible(false);
	    p5_2.setVisible(false);
	    p6_2.setVisible(false);	
		 p4_1.setVisible(true);
		 p5_1.setVisible(true);
		 p6_1.setVisible(true);	
		}
	
	  if(emptype.getSelectedItem()=="Piece Worker")
		{
		 p4_1.setVisible(false);
	    p5_1.setVisible(false);
	    p6_1.setVisible(false);	
		 p4_2.setVisible(true);
		 p5_2.setVisible(true);
		 p6_2.setVisible(true);	
		}
    
	 	if(emptype.getSelectedItem()=="----------------------------------------")
		{
		          p4_1.setVisible(false);
	             p5_1.setVisible(false);
	             p6_1.setVisible(false);	
	             p4_2.setVisible(false);
	         	 p5_2.setVisible(false);
	          	 p6_2.setVisible(false);	
    	}
  } 
	 
	 public void keyPressed(KeyEvent e)
	 {
	    	
		 if(idlenght()>0)
		 { 
		  if(e.getKeyCode()==KeyEvent.VK_ENTER)
		 {
		  
		  if(!isfound())
		  {
		   message.setForeground(Color.RED);  
			message.setText("ID IS NOT FOUND");
		   last.setText(null);
		 	first.setText(null);
		   mi.setText(null);
		   age.setText(null);
		   branch.setText(null);
		   hours.setText(null);
		   rate.setText(null);
		   male.setSelected(false);
		   female.setSelected(false);
			delete.setSelected(false);

				  }
		  
   if(isfound())
		  {
		   delete.setEnabled(true);
			    
	  	for(int i=0;i<emplist.getcount();i++)
		 {
		  
		 if(emplist.employee[i] instanceof HourlyEmployee)
		  {
		    if(id.getText().equals(emplist.employee[i].getIdno()))
		 {  
		  items.setText(null);
	     pay.setText(null);		
		  message.setForeground(Color.RED);
        message.setText("Id number is found");
		  last.setText(emplist.employee[i].getLastname());
		  first.setText(emplist.employee[i].getFirstname());
		  mi.setText(emplist.employee[i].getmi());
		  age.setText(""+emplist.employee[i].getAge());
		  branch.setText(emplist.employee[i].getCompName());
		  rate.setText(""+emplist.employee[i].getPerHour());
        hours.setText(""+emplist.employee[i].getHours());
        emptype.setSelectedItem("Hourly Employee"); 
		     
		if(emplist.employee[i].getgender().equals("MALE"))
		{
	      male.setSelected(true);
   	   female.setSelected(false);
		}
		if(emplist.employee[i].getgender().equals("FEMALE"))

		{
		 male.setSelected(false);
       female.setSelected(true);
		}
		   }
			
							
			}
	
	    if(emplist.employee[i] instanceof PieceWorker)
		  {
		    
			  if(id.getText().equals(emplist.employee[i].getIdno()))
			  {
			   rate.setText(null);
            hours.setText(null);
				message.setForeground(Color.RED);
            message.setText("Id number is found");
		      last.setText(emplist.employee[i].getLastname());
		      first.setText(emplist.employee[i].getFirstname());
		      mi.setText(emplist.employee[i].getmi());
		      age.setText(""+emplist.employee[i].getAge());
		      branch.setText(emplist.employee[i].getCompName());
			  	items.setText(""+emplist.employee[i].getNoItems());
				pay.setText(""+emplist.employee[i].getRate());
				emptype.setSelectedItem("Piece Worker");
						 
			  }
		  
	 	  if(emplist.employee[i].getgender().equals("MALE"))
		  {
		   female.setSelected(false);
		   male.setSelected(true);
	   	}
	     if(emplist.employee[i].getgender().equals("FEMALE"))
	   	{
		  male.setSelected(false);
		  female.setSelected(true);
	      }
		  }
	    }
		  }	  
		}
		}
			
    }
	
	 public void keyReleased(KeyEvent e)
	 {   	
		 if(mi.getText().length()>1)
	 	 mi.setText(mi.getText().substring(0,1));
		 gettrap();
		 emptype.setSelectedItem(true);
		//readObjectToFile(emplist); 
    
	}
	 
	 public void keyTyped(KeyEvent e){ }  

	 public void deleteHourly()
		 {
		      			 
			 for(int i=0;i<emplist.getcount();i++)
			 {
			   if(emplist.employee[i] instanceof HourlyEmployee)
				{
				  if(id.getText().equals(emplist.employee[i].getIdno()))
				  {
				    emplist.delete(emplist.employee[i]);
					 JOptionPane.showMessageDialog(null,"Succesfully Deleted");
					 id.setText(null);
		 		    last.setText(null);
		 			 first.setText(null);
					 mi.setText(null);
					 age.setText(null);
					 branch.setText(null);
					 hours.setText(null);
					 rate.setText(null);
					 male.setSelected(false);
					 female.setSelected(false);
					 message.setText("");
	      	  }
		 		}
			
			 }
		 
		 }
		 
		 public void  deletePieceWorker()
		 {
		   for(int i=0;i<emplist.getcount();i++)
			 {
			   if(emplist.employee[i] instanceof PieceWorker)
				{
				  if(id.getText().equals(emplist.employee[i].getIdno()))
				  {
				    emplist.delete(emplist.employee[i]);
					 JOptionPane.showMessageDialog(null,"Succesfully Deleted");
				    id.setText(null);
					 last.setText(null);
					 first.setText(null);
					 mi.setText(null);
					 age.setText(null);
					 branch.setText(null);
					 pay.setText(null);
					 items.setText(null);
					 male.setSelected(false);
      			 female.setSelected(false);
	 	 		  }
					}
			 }
		 
		 }
		
		    public void addObjectToFile(EmployeeList list){
    	try{
    		File file  = new File("employee.txt");
    		FileOutputStream os = new FileOutputStream(file);
    		outstream = new ObjectOutputStream(os);
    		outstream.writeObject(list);
    		System.out.println("object written to file");
    		}
    	catch(FileNotFoundException fn){
    		File file  = new File("employee.txt");
    		}
    	catch(IOException ioe){
			ioe.printStackTrace();
		}
    	finally{
           try{
              outstream.close();
           }
           catch(IOException io){
			  	JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT CLOSE!!!");
			  }
    		}
    	
    	}
		
 
		       
	public void gettrap()
	{
	  Person p=new Person();
		  if(p.isThereADigit(mi.getText()))
		 {
		   noDigit();
		   mi.setText(null);
		 }
		 
		 if(p.isThereADigit(last.getText()))
		 {
		    noDigit();
			 last.setText(null);
		 }

		  if(p.isThereADigit(first.getText()))
		 {
		   noDigit();
         first.setText(null);
		 }
		
		 Employee emp=new PieceWorker(); 
		 
		  for(int i=0;i<age.getText().length();i++)
		 {
        if(Character.isWhitespace(age.getText().charAt(i)))
		  {
		   JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         age.setText(null);
        }
		 }    
           
   	for(int i=0;i<age.getText().length();i++)
		 {
        if(age.getText().charAt(i)=='-')
		  {
		   JOptionPane.showMessageDialog(null,"Entering a negative number is not allowed!");
         age.setText(null);
        }
		 }    
		
		if(emp.isLetterFound(age.getText()))
	     {
	       noLetter();
			 age.setText(null);
		  }
			
		  for(int i=0;i<id.getText().length();i++)
		 {
        if(Character.isWhitespace(id.getText().charAt(i)))
		  {
		   JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         id.setText(null);
        }
		 if(emp.isLetterFound(id.getText()))
		 {
		   noLetter();
	      id.setText(null);
		  }
		   if(id.getText().length()>6)
		 {
		  JOptionPane.showMessageDialog(null,"ID number must Be 6 Digit!!!");
		  id.setText(null);
		 }

		 }    
		      
		  for(int i=0;i<hours.getText().length();i++)
		 {
        if(Character.isWhitespace(hours.getText().charAt(i)))
		  {
		   JOptionPane.showMessageDialog(null,"Please don't LEAVE a SPACE or DONT ENTER A SPACE!!");
         hours.setText(null);
        }
		  if(emp.isLetterFound(hours.getText()))
		 {
		  noLetter();
		  hours.setText(null);
		 }
		 }    
		 		
		  if(emp.isLetterFound(pay.getText()))
		 {
		   noLetter();
		   pay.setText(null);
		 }
		
		 for(int i=0;i<items.getText().length();i++)
		 {
        if(items.getText().charAt(i)=='.')
		  {
		   JOptionPane.showMessageDialog(null,"double datatype is not allowed");
         items.setText(null);
        }
		  if(emp.isLetterFound(items.getText()))
		 	{ 
		   noLetter();
         items.setText(null);
		 	}

		 }    
		   
	 	if(emp.isLetterFound(rate.getText()))
	  	 {
	     noLetter();        
		  rate.setText(null);
		 }	  
	}

	 public int idlenght()
	 {
	  return id.getText().length();
	 }	 
    public int lastlength()
	 {
	  return last.getText().length(); 
	 } 
	 public int firstlength()
	 {
	  return first.getText().length();
	 } 
	 public int agelength()
	 {
	  return age.getText().length();
	 }
 	 public int milength()
	 {
	  return mi.getText().length();
	 } 
	 public int branchlength()
	 {
	  return branch.getText().length();
	 }
	 public int hourslength()
	 {
	  return hours.getText().length();
	 }
	 public int itemslength()
	 {
	  return items.getText().length();
	 }
	 public int paylength()
	 {
	  return pay.getText().length();
	 }
	 public int ratelength()
	 {
	  return rate.getText().length();
	 }
	 
	public void applytrap()
	{
	  JOptionPane.showMessageDialog(null,"PLEASE FILL UP ALL THE FIELDS FIRST");

	}
   
	public void noDigit()
	{
	JOptionPane.showMessageDialog(null,"It MUST be a LETTER!!");
	}
	public void noLetter()
	{
	 JOptionPane.showMessageDialog(null,"It MUST be a NUMBER");
	}
  
  public void addPieceWorker()
  {
  	if(idlenght()==6)
	{
   if(idlenght()>0)
	  {
	   if(lastlength()>0)
		{
		 if(firstlength()>0)
		 {
		  if(milength()>0)
		  {
		   if(agelength()>0)
			{
			 if(branchlength()>0)
			 {
			  if(itemslength()>0)
			  {
			   if(paylength()>0)
				{
			    if(gender!=null)
				 {	 
				 if(isIdAllDigit())
				{
		 if(!emplist.isFull())
			{
				try
		 		{
		  	String last1=last.getText();
 			String first1=first.getText();
			String mi1=mi.getText();
  			int age1=Integer.parseInt(age.getText());
  		   String idno1=id.getText();
			String position1=" ";
 		   String companyName1=branch.getText();
			int items1=Integer.parseInt(items.getText());
 			double pay1=Double.parseDouble(pay.getText());
			 empP=new PieceWorker(last1,first1,age1,mi1,gender,idno1,position1,companyName1,0,0,0,items1,pay1);
            emplist.add(empP);
				addObjectToFile(emplist);
				message.setForeground(Color.RED);
            message.setText("ONE Employee ADDED");
				empP.display();
				emplist.countPE();
				JOptionPane.showMessageDialog(null,"SUCCESFULLY ADDED");
								
		 id.setText(null);
		 last.setText(null);
		 first.setText(null);
		 mi.setText(null);
		 age.setText(null);
		 branch.setText(null);
		 pay.setText(null);
		 items.setText(null);
		 male.setSelected(false);
       female.setSelected(false);         
        
 				}
				
    			catch(Exception excp)
	     	  {
            JOptionPane.showMessageDialog(null,"Please Retype!!!");
           }    
	    }
		 else
		 {
		   JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nMaximum number of Employee's are only 5");
		 }
		 }
		 else
		 {
		   JOptionPane.showMessageDialog(null,"ID no. MUST BE NUMBER!!");
		 }
       		 
		 }
		 
		 else
		  {
		  JOptionPane.showMessageDialog(null,"Oppss... Dont Forget the GENDER!!!!");
	     }					 
			}
			else
				{
				applytrap();
				}
			  }
			  else
			  {
			   applytrap();
			  }
			 }
			 else
			 {
			 	 applytrap();
			 }
			}
			else
			{
			  applytrap();
			}
		  }
		  else
		  {
		    applytrap();
		  }
		 }
		 else
		 {
		 	 applytrap();
		 }
		}
		else
		{
		  applytrap();
		}
	  }
	  else
	  {
	   applytrap();

		}   
		
	 }
	else
	{
		JOptionPane.showMessageDialog(null,"ID no. MuSt be SIX digits!!");
	}
  }
  
  	 public boolean isIdAllDigit()
	 {
	   boolean result=false;
		for(int i=0;i<idlenght();i++)
		{
		  if(Character.isDigit(id.getText().charAt(i)))
		  {
		   result=true;
		  }
		  else
		  {
		   result=false;
			break;
		  }
		}
	   return result;
	 }
 	

  
   public void addhourly()
	 {
	  if(idlenght()>0)
	  {
	   if(lastlength()>0)
		{
		 if(firstlength()>0)
		 {
		  if(milength()>0)
		  {
		   if(agelength()>0)
			{
			 if(branchlength()>0)
			 {
			  if(hourslength()>0)
			  {
			   if(ratelength()>0)
				{
				if(gender!=null)
			{
		 if(isIdAllDigit())
			{
			 if(!emplist.isFull())
			 {
			 try
		 		{ 	
				String last1=last.getText();
 				String first1=first.getText();
		      String mi1=mi.getText();
  				int age1=Integer.parseInt(age.getText());
  			   String idno1=id.getText();
		   	String position1=" ";
 			   String companyName1=branch.getText();
				int hours1=Integer.parseInt(hours.getText());
 			   double rate1=Double.parseDouble(rate.getText());
				int over=0;			  	
        		empH=new HourlyEmployee(last1,first1,age1,mi1,gender,idno1,position1,companyName1,hours1,rate1,over,0,0);
				
				addObjectToFile(emplist);
				JOptionPane.showMessageDialog(null,"Succesfully Written in the file");
            emplist.add(empH);
				message.setForeground(Color.RED);
				message.setText("ONE Employee is ADDED");
            empH.display();	   
				JOptionPane.showMessageDialog(null,"Succesfully added");
								
		 id.setText(null);
		 last.setText(null);
		 first.setText(null);
		 mi.setText(null);
		 age.setText(null);
		 branch.setText(null);
		 hours.setText(null);
		 rate.setText(null);
		 male.setSelected(false);
		 female.setSelected(false);

   			}
    		 catch(Exception excp)
	       {
            JOptionPane.showMessageDialog(null,"HoursWorked must be an integer type,pay rate must be a double type and age must be an integer");
           } 
      }
		else
		{
		  JOptionPane.showMessageDialog(null,"EmployeeList is Full,\nYou Can ONLY ADD 5 EMPLOYEES");
   	}
		}
		else
		{
		  JOptionPane.showMessageDialog(null,"Id must be all NUMBER!!");
		}
	  
     }
   	else
		{
		 JOptionPane.showMessageDialog(null,"Opps! Dont forget the gender!!!");
		}

				}
				else
				{
				 applytrap();
				}
			  }
			  else
			  { 
			  applytrap();
			  }
			 }
			 else
			 {
			 	 applytrap();
			 }
			}
			else
			{
			 applytrap();
			}
		  }
		  else
		  {
		   applytrap();
		  }
		 }
		 else
		 { 
		 applytrap();
		 }
		}
		else
		{
		 applytrap();
		}
	  }
	  else
	  { 
	  applytrap();
     }
	 }
  
  


  public boolean isfound()
  {
    boolean result=false;
	  for(int i=0;i<emplist.getcount();i++)
	  {
	    if(emplist.employee[i] instanceof HourlyEmployee)
		 {
		  if(id.getText().equals(emplist.employee[i].getIdno()))
		  {
		   result=true;
			break;
		  }
		  else
		  {
		   result=false;
		  }
		 }
		 
		if(emplist.employee[i] instanceof PieceWorker)
		{
		 if(id.getText().equals(emplist.employee[i].getIdno()))
		 {
		  result=true;
		  break;
		 }
		 else
		 {
		  result=false;
		 }
		}
	  }	 
	 return result;
  }
		
	 public static void main(String []args)
	 {
	    new EmployeeEntry();
	 }
   }
 
/*   public EmployeeList readObjectFromFile(){
    	EmployeeList  list = new EmployeeList();
    	try{
    		FileInputStream is = new FileInputStream("employee.txt");
    		instream = new ObjectInputStream(is);
    		//read object from file
    		   list = (EmployeeList)instream.readObject();
    		}
    	catch(ClassNotFoundException cn){
				JOptionPane.showMessageDialog(null,"Oppss...The Class was not Found!!!");
		}
    	catch(FileNotFoundException fn){
				JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT Found!!");
		}
    	catch(IOException io){}
    	finally{
    		try{
    		   instream.close();
    		  }
    		  catch(IOException io){
			  	JOptionPane.showMessageDialog(null,"Oppss...The FILE did NOT CLOSE!!!");
			  }
    		}
    	  return list;
    	}
    
  */

Can someone suggest me how to add the update on my program, and how to read the object i entered because the the writetofile object is already working but the readtofile is not working yet ..especially the update how to do it...

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