Homework help page 349

[drbrown3]

Ok, using Jgrasp I was given a problem that asked me to design a GUI program to find the weighted average of four test scores. The four test scores and their respective weights are give in the following format....testscore1 weight1

This is what I have so far, the code will not compile. I was wondering if someone could help me with the reason as to why that is.

//Page 349 Number 1 
  
   import javax.swing.*;
   import java.awt.*;   
   import java.awt.event.*;

    public class Page3491 extends JFrame
   {
   
      private static final int W = 400;
      private static final int L = 300;
   	
      private JButton calculate, exitB;
      private CalculateButtonHandler cbHandler;
      private ExitButtonHandler ebHandler;
   	    
       public Page3491()
      {
      
      
      //Labels
      
         gradesL = new JLabel("Enter your grades: ",SwingConstants.RIGHT);
      									
         weightL = new JLabel("Your weighted averages are: ",SwingConstants.RIGHT);
      
      //Text Fields
      
         grade1TF = new JTextField(5);
         grade2TF = new JTextField(5);
         grade3TF = new JTextField(5);
         grade4TF = new JTextField(5);
         weight1TF= new JTextField(5);
         weight2TF= new JTextField(5);
         weight3TF= new JTextField(5);										
         weight4TF= new JTextField(5);
      	
      //Creating Calculate Button
      
         calculateB = new JButton("Calculate");
         cbhandler = new CalculateButtonHandler();
         calculateB.addActionListner(ebHandler);
      
      //Creating Exit Button
      
         exitB = new JButton("Exit");
         ebHandler = new ExitButtonHandler();
         exitB.addActionListener(ebHandler);
      
      //Setting the Title of the Window
      
         setTitle("Weighted Average Calculator");
         setSize(W,L);
      	
      	//Getting Container
      	
         Container pane = getContentPane();
      	
      	//Setting Layout
      	
         pane.setLayout(new GridLayout(6,4));
      	
      	//Placing Components in the pane
      	
         pane.add(gradesL);
         pane.add(grade1TF);
         pane.add(grade2TF);
         pane.add(grade3TF);
         pane.add(grade4TF);
         pane.add(weightL);
         pane.add(weight1TF);
         pane.add(weight2TF);
         pane.add(weight3TF);	
         pane.add(weight4);
         pane.add(calculateB);
         pane.add(exitB);
      	
      	 //  Step 4 --  Creating Event Handlers
         cbHandler = new ConvertButtonHandler();
         convertB.addActionListener(cbHandler);
      	
         ebHandler = new ExitButtonHandler();
         exitB.addActionListener(ebHandler);
      	
      	//Setting the size and displaying it
      	
         setSize(WIDTH, HEIGHT);
         setVisibile(true);
         setDefaultCloseOperation(EXIT_ON_CLOSE);
      }		
      				
       private class CalculateButtonhandler	implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
            double s1, s2, s3, s4, w1, w2, w3, w4;
         			
            s1 = Double.parseDouble(grade1TF.getText());         
            s2 = Double.parseDouble(grade2TF.getText());
            s3 = Double.parseDouble(grade3TF.getText());
            s4 = Double.parseDouble(grade4TF.getText());
         			
            w1 = (s1 * .6);
            w2 = (s2 * .1);
            w3 = (s3 * .1);
            w4 = (s4 * .2);
         			
            celTF.setText(Double.toString(c));
         			
         }
      }
       private class ExitButtonHandler implements ActionListener
      {
          public void actionPerformed(ActionEvent e)
         {
            System.out.println();
            System.exit(0);
                    
         }
      }
   
       public static void main(String[] args)
      {
         Page3491 = new Page3491();
      
      
      }
   
   
   
   
   
   }

Any help is very much appreciated.

[stultuske]

I'll give you a couple of hints, that caught my eye without really deep-reading the code:

..
gradesL = new JLabel("Enter your grades: ",SwingConstants.RIGHT);
..
grade1TF = new JTextField(5);
..
calculateB = new JButton("Calculate");

change the above code (and everything like it) to

JLabel gradesL = new JLabel("Enter your grades:", SwingConstants.RIGHT);
..
JTextField grade1TF = new JTextField(5);
..
JButton calculateB = new JButton("Calculate");

[masijade]

Uhm, to tell you the truth, the compiler is helping you with that, with the messages it produces when you attempt to compile it. What are they?