help me.....illegal start of type

Question

hashim11 0 Newbie Poster

13 Years Ago

i really need help...
i dont know where the problem...
the line error on that part>>class reserveform extends JFrame implements {

import java.awt.Dimens;
import java.awt.*;
import javax.swing.*;
import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.Collections;
import java.awt.event.*;


class reserveform extends JFrame implements {


    // operation interface

    JPanel operation;
    JButton reservbtn, cancel,modify,save;
    JButton next,first,last,previous;
    JPanel moving;

    reserveform ()
    {

        Container c = getContentPane();
        c.setLayout(new FlowLayout());
        c.setBackground(Color.red);

        //hostcontainer = new JPanel(new FlowLayout());


        name= new JLabel("Name:");
        id = new JLabel("ID");
        address = new JLabel("Address:");
        job = new JLabel("JOB:");

        txtname= new JTextField(20);
        txtid = new JTextField (20);
        txtaddress= new JTextField (20);
        txtjob = new JTextField (20);

        name_id  = new JPanel(new FlowLayout());
        name_id .setBackground(Color.red);
        addr_job = new JPanel(new FlowLayout());
        addr_job.setBackground(Color.red);


        //add elemtents into panel
            name_id.add(name); name_id.add(txtname);
        name_id  .add(id); name_id  .add(txtid);
        addr_job .add(address); addr_job .add(txtaddress);
        addr_job .add(job); addr_job .add(txtjob);

        //hostcontainer.add(name_id  ); hostcontainer.add(addr_job );

        c.add(name_id); c.add(addr_job);
        //c.add(hostcontainer,"North");



        // building interface for room

        type=new JLabel("Type:  ");
        roomno=new JLabel("roomNo      ");
        arrivingdate=new JLabel("Arriving");
        days= new JLabel("Days:");

        txttype = new JComboBox(new String[]{"Single","Double","Sweet"});
        txttype.setBackground(Color.red);

        txtromno= new JTextField(20);
        txtarriving= new JTextField(20);
        txtdays= new JTextField(20);

        roomcontainer = new JPanel(new FlowLayout());
        roomcontainer.setBackground(Color.red);

        roomcontainer.add(type); roomcontainer.add(txttype);


        container2= new JPanel(new FlowLayout());
        container2.setBackground(Color.red);
        container2.add(roomno); container2.add(txtromno);

        container3= new JPanel(new FlowLayout());
        container3.setBackground(Color.red);
        container3.add(arrivingdate); container3.add(txtarriving);

        container4 = new JPanel(new FlowLayout());
        container4 .setBackground(Color.red);
        container4.add(days);container4.add(txtdays);

        c.add(roomcontainer); c.add(container2); c.add(container3); c.add(container4);

        // build interface of operations

        operation= new JPanel(new FlowLayout());
        operation.setBackground(Color.red);

        reservbtn = new JButton("New Resv:"); 
        reservbtn.addActionListener(this);

        cancel = new JButton("Cancel");
        cancel.addActionListener(this);

        modify= new JButton("Modify");
        modify.addActionListener(this);

        save = new JButton("Save");
        save.addActionListener(this);


        moving = new JPanel(new FlowLayout());
        moving .setBackground(Color.red);
        next = new JButton("Next");
        next.addActionListener(this);

        first= new JButton("first");
        first.addActionListener(this);

        last= new JButton("last");
        last.addActionListener(this);

        previous= new JButton("previous");
        previous.addActionListener(this);

        moving.add(first); moving.add(next);    moving.add(previous); moving.add(last);


        operation.add(reservbtn);   operation.add(save);
        operation.add(cancel);      operation.add(modify); 

        c.add(operation);
        c.add(moving);

        setVisible(true);
        setSize(600,270);


         setResizable(false);


        if (listA.isEmpty())
            { disableall(); disableaction();}

        setLocation(600,100);

    }


    void enableall() 
        {
            next.setEnabled(true);
            first.setEnabled(true);
            last.setEnabled(true);
            previous.setEnabled(true);
                cancel.setEnabled(true); 
            modify.setEnabled(true); 
            save.setEnabled(true);

        }
    void disableall()
        {

            next.setEnabled(false);
            first.setEnabled(false);
            last.setEnabled(false);
            previous.setEnabled(false);

        }
    void disableaction()
    {
     cancel.setEnabled(false); modify.setEnabled(false); save.setEnabled(false);
    }
    public void clearboxes()
    {

        txtname.setText(" ");
        txtid.setText(" ");
        txtaddress.setText(" ");
        txtjob.setText(" ");
        txtromno.setText(" ");
        txtarriving.setText(" ");
        txtdays.setText(" ");


      }

  public void fillinfo() 
    {

          return new reservation(txtname.getText(), txtid.getText(),txtaddress.getText(),
        txtjob.getText(), txtromno.getText(), txtarriving.getText(),txtdays.getText(),  
                (String)txttype.getSelectedItem()); 

    }

    public void show (reservation ob) 
    {


        if (index< listA.size() && index>=0)
        {
            txtname.setText(ob.hst.name);
            txtid.setText(ob.hst.id);
            txtaddress.setText(ob.hst.address);
            txtjob.setText(ob.hst.job);
            txtromno.setText(ob.rm.roomno);
            txtarriving.setText(ob.dateofcome);
            txtdays.setText(ob.days+" ");

            if(ob.rm.type.equals("Single"))
                txttype.setSelectedIndex(0);
            else
                if(ob.rm.type.equals("Double"))
                txttype.setSelectedIndex(1);
                else
                txttype.setSelectedIndex(2);
        }


}

public void actionPerformed(ActionEvent e) 
{ 

    String lbl=e.getActionCommand();

    if(lbl.equals( "New Resv:"))
       { clearboxes();
         save.setEnabled(true);
         cancel.setEnabled(true);
         cancel.setText("ignore");
       }

    else
        if(lbl.equals("Save"))
                { 

               listA.add(fillinfo());
               index= listA.size()-1;
               show((reservation)listA.get(index));
                enableall();cancel.setText("Cancel");
            }
        else
            if(lbl.equals("Cancel") )
             { listA.remove(index);
               if(!listA.isEmpty())
                show((reservation)listA.get(index));
                else
                { disableall(); disableaction();clearboxes();}
             }

              else if (lbl.equals("ignore"))
                { clearboxes(); cancel.setText("Cancel"); enableall();}
             else


                  if(lbl.equals("Modify"))
                {
                   listA.add(fillinfo());
                   listA.remove(index);
                   show((reservation)listA.get(listA.size()-1));
                }
                else
                  if(lbl.equals("first"))
                   {
                    index=0;  show((reservation)listA.get(index));cancel.setText("Cancel");
                   }
                   else
                   if(lbl.equals("last"))
                    { index=listA.size()-1; show((reservation)listA.get(index));cancel.setText("Cancel");}
                   else
                    if(lbl.equals("previous") && index>0)
                     {  
                    index-=1; show((reservation)listA.get(index));cancel.setText("Cancel");
                     }
                     else

                    if(lbl.equals("Next") && (index+1) < listA.size())
                      {
                        index+=1;show((reservation)listA.get(index)); cancel.setText("Cancel");
                      }    



    }

}

java

Edited 11 Years Ago by Reverend Jim because: Fixed formatting

5 Contributors
10 Replies
144 Views
1 Month Discussion Span
Latest Post 13 Years Ago Latest Post by quuba

All 10 Replies

quuba 81 Posting Pro

13 Years Ago

class reserveform extends JFrame implements ---???----{
- Which one interface implements?

JamesCherrill 4,733 Most Valuable Poster

13 Years Ago

implements ... need an interface name here.
ps post iin code tags and indent code properly

quuba 81 Posting Pro

13 Years Ago

line 224:
public void actionPerformed(java.awt.event.ActionEvent e)
this method override abstract method in java.awt.event. ... which Listener?
TUTOR:http://download.oracle.com/javase/tutorial/uiswing/events/intro.html

Edited 13 Years Ago by quuba because: add TUTOR url

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hashim11 0 Newbie Poster · Answer 1 · 2010-10-24T18:34:04+00:00

I'm very new to writing java.I've tried everything to fix it.can u make it right for me....

import java.awt.Dimens;
import java.awt.*;
import javax.swing.*;
import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.Collections;
import java.awt.event.*;


class reserveform extends JFrame implements {


	// operation interface

	JPanel operation;
	JButton reservbtn, cancel,modify,save;
	JButton next,first,last,previous;
	JPanel moving;

	reserveform ()
	{

		Container c = getContentPane();
		c.setLayout(new FlowLayout());
		c.setBackground(Color.red);

		//hostcontainer = new JPanel(new FlowLayout());
		

		name= new JLabel("Name:");
		id = new JLabel("ID");
		address = new JLabel("Address:");
		job = new JLabel("JOB:");

		txtname= new JTextField(20);
		txtid = new JTextField (20);
		txtaddress= new JTextField (20);
		txtjob = new JTextField (20);

		name_id  = new JPanel(new FlowLayout());
		name_id .setBackground(Color.red);
		addr_job = new JPanel(new FlowLayout());
		addr_job.setBackground(Color.red);


		//add elemtents into panel
          	name_id.add(name); name_id.add(txtname);
		name_id  .add(id); name_id  .add(txtid);
		addr_job .add(address); addr_job .add(txtaddress);
		addr_job .add(job); addr_job .add(txtjob);

		//hostcontainer.add(name_id  ); hostcontainer.add(addr_job );
		
		c.add(name_id); c.add(addr_job);
		//c.add(hostcontainer,"North");



		// building interface for room

		type=new JLabel("Type:  ");
		roomno=new JLabel("roomNo      ");
		arrivingdate=new JLabel("Arriving");
		days= new JLabel("Days:");

		txttype = new JComboBox(new String[]{"Single","Double","Sweet"});
		txttype.setBackground(Color.red);

		txtromno= new JTextField(20);
		txtarriving= new JTextField(20);
		txtdays= new JTextField(20);

		roomcontainer = new JPanel(new FlowLayout());
		roomcontainer.setBackground(Color.red);

		roomcontainer.add(type); roomcontainer.add(txttype);
		
		
		container2= new JPanel(new FlowLayout());
		container2.setBackground(Color.red);
		container2.add(roomno); container2.add(txtromno);
		
		container3= new JPanel(new FlowLayout());
		container3.setBackground(Color.red);
		container3.add(arrivingdate); container3.add(txtarriving);

		container4 = new JPanel(new FlowLayout());
		container4 .setBackground(Color.red);
		container4.add(days);container4.add(txtdays);

		c.add(roomcontainer); c.add(container2); c.add(container3); c.add(container4);

		// build interface of operations
		
		operation= new JPanel(new FlowLayout());
		operation.setBackground(Color.red);

		reservbtn = new JButton("New Resv:"); 
		reservbtn.addActionListener(this);
		
		cancel = new JButton("Cancel");
		cancel.addActionListener(this);

		modify= new JButton("Modify");
		modify.addActionListener(this);

		save = new JButton("Save");
		save.addActionListener(this);
		
		
		moving = new JPanel(new FlowLayout());
		moving .setBackground(Color.red);
		next = new JButton("Next");
		next.addActionListener(this);

		first= new JButton("first");
		first.addActionListener(this);

		last= new JButton("last");
		last.addActionListener(this);

		previous= new JButton("previous");
		previous.addActionListener(this);

		moving.add(first); moving.add(next);	moving.add(previous); moving.add(last);

		
		operation.add(reservbtn);	operation.add(save);
		operation.add(cancel);		operation.add(modify); 

		c.add(operation);
		c.add(moving);
		
		setVisible(true);
		setSize(600,270);
		 
		 
		 setResizable(false);
		
		
		if (listA.isEmpty())
			{ disableall(); disableaction();}

		setLocation(600,100);

	}


	void enableall() 
		{
			next.setEnabled(true);
			first.setEnabled(true);
			last.setEnabled(true);
			previous.setEnabled(true);
		        cancel.setEnabled(true); 
			modify.setEnabled(true); 
			save.setEnabled(true);

		}
	void disableall()
		{

			next.setEnabled(false);
			first.setEnabled(false);
			last.setEnabled(false);
			previous.setEnabled(false);

		}
	void disableaction()
	{
	 cancel.setEnabled(false); modify.setEnabled(false); save.setEnabled(false);
	}
	public void clearboxes()
	{

		txtname.setText(" ");
		txtid.setText(" ");
		txtaddress.setText(" ");
		txtjob.setText(" ");
		txtromno.setText(" ");
		txtarriving.setText(" ");
		txtdays.setText(" ");


      }
	
  public void fillinfo() 
	{

		  return new reservation(txtname.getText(), txtid.getText(),txtaddress.getText(),
		txtjob.getText(), txtromno.getText(), txtarriving.getText(),txtdays.getText(),  
                (String)txttype.getSelectedItem()); 

	}

	public void show (reservation ob) 
	{

		 
		if (index< listA.size() && index>=0)
		{
			txtname.setText(ob.hst.name);
			txtid.setText(ob.hst.id);
			txtaddress.setText(ob.hst.address);
			txtjob.setText(ob.hst.job);
			txtromno.setText(ob.rm.roomno);
			txtarriving.setText(ob.dateofcome);
			txtdays.setText(ob.days+" ");
		
			if(ob.rm.type.equals("Single"))
		 		txttype.setSelectedIndex(0);
			else
		  	    if(ob.rm.type.equals("Double"))
			 	txttype.setSelectedIndex(1);
		   	    else
			 	txttype.setSelectedIndex(2);
		}
			
	
}

public void actionPerformed(ActionEvent e) 
{ 

	String lbl=e.getActionCommand();

	if(lbl.equals( "New Resv:"))
	   { clearboxes();
	     save.setEnabled(true);
	     cancel.setEnabled(true);
	     cancel.setText("ignore");
	   }

	else
		if(lbl.equals("Save"))
		        { 
			    	
			   listA.add(fillinfo());
			   index= listA.size()-1;
			   show((reservation)listA.get(index));
			    enableall();cancel.setText("Cancel");
			}
		else
			if(lbl.equals("Cancel") )
			 { listA.remove(index);
			   if(!listA.isEmpty())
			   	show((reservation)listA.get(index));
			    else
				{ disableall(); disableaction();clearboxes();}
			 }

			  else if (lbl.equals("ignore"))
				{ clearboxes(); cancel.setText("Cancel"); enableall();}
			 else
			   

			      if(lbl.equals("Modify"))
				{
				   listA.add(fillinfo());
				   listA.remove(index);
				   show((reservation)listA.get(listA.size()-1));
				}
				else
				  if(lbl.equals("first"))
				   {
					index=0;  show((reservation)listA.get(index));cancel.setText("Cancel");
				   }
				   else
				   if(lbl.equals("last"))
				    { index=listA.size()-1; show((reservation)listA.get(index));cancel.setText("Cancel");}
				   else
				    if(lbl.equals("previous") && index>0)
				     {  
					index-=1; show((reservation)listA.get(index));cancel.setText("Cancel");
				     }
				     else
				      
					if(lbl.equals("Next") && (index+1) < listA.size())
					  {
					    index+=1;show((reservation)listA.get(index)); cancel.setText("Cancel");
					  }    
			   
		

	}

}

hashim11 0 Newbie Poster · Answer 2 · 2010-10-24T19:18:25+00:00

i have fix it...
but i still cant get the solution...

kramerd 29 Posting Pro in Training · Answer 3 · 2010-10-24T20:22:39+00:00

If you have a new question, please mark this thread solved and start a new thread.

etayhn 0 Newbie Poster · Answer 4 · 2010-10-24T21:36:06+00:00

you wrote

class reserveform extends JFrame implements

but you didn't write what it implements..

either add implementation(such as

class reserveform extends JFrame implements java.awt.event.ActionListener

) or remove the word implements(

class reserveform extends JFrame

)

hashim11 0 Newbie Poster · Answer 5 · 2010-10-25T10:06:24+00:00

hashim11 0 Newbie Poster

13 Years Ago

its still cant working..

quuba 81 Posting Pro · Answer 6 · 2010-10-25T14:50:54+00:00

You need declarations of type for all varibles:

public class reserveform extends JFrame implements ActionListener {

// operation interface
    JPanel operation;
    JButton reservbtn, cancel, modify, save;
    JButton next, first, last, previous;
    JPanel moving;
    /// missed declarations
    JLabel name, id, address, job;
    JTextField txtname, txtid, txtaddress, txtjob;
    
    ///and so on

look at your compilation errors

quuba 81 Posting Pro · Answer 7 · 2010-12-21T07:11:28+00:00

"sometimes a man is blind"
Look at line 1 of your code (first post)
import java.awt.Dimens;
should be
import java.awt.Dimension;

help me.....illegal start of type

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