Why won't my number enter in the other box

Question

I am writing a program for class. I have to be able to input a number in a box and then have it display in the box next to it. It also has to add the numbers everytime I put a number in the first box. I am able to get the enter button to change colors. Not sure how to get it to add and display the numbers. Also the first box has to default back to 00.0 when I click enter. Hope this is clear. Here is the code.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class FinalProject extends JFrame implements ActionListener
     public static final int WIDTH = 550;
     public static final int HEIGHT = 100;
     private JTextField myNumberOut1;
     private JTextField myNumberIn1;
     private double sum=0;
     public FinalProject()
          super("Eric Luce's Final Project");
          setSize(WIDTH, HEIGHT);
/** Setting Labels 1-3 for Stations
          JLabel myLabel1 = new JLabel ("Station Austin:");
          JLabel myLabel2 = new JLabel ("Station Amherst:");
          JLabel myLabel3 = new JLabel ("Station LaCrosse:");
/** Setting Buttons 1-3 for Adding NumberIn
          JButton myButton1 = new JButton ("Enter");
          myButton1.addActionListener(this);
          myButton1.setBackground(Color.RED);
          JButton myButton2 = new JButton ("Enter");
          myButton2.addActionListener(this);
          myButton2.setBackground(Color.WHITE);
          JButton myButton3 = new JButton ("Enter");
          myButton3.addActionListener(this);
          myButton3.setBackground(Color.BLUE);
/** Setting Labels 4-6 for Rain Fall totals
          JLabel myLabel4 = new JLabel ("Total Rainfall:");
          JLabel myLabel5 = new JLabel ("Total Rainfall:");
          JLabel myLabel6 = new JLabel ("Total Rainfall:");
/** Setting Text fields for NumberIn
          JTextField myNumberIn1 = new JTextField ("0.0", 10);
          JTextField myNumberIn2 = new JTextField ("0.0",10);
          JTextField myNumberIn3 = new JTextField ("0.0", 10);
/** Setting Text fields for NumbersOut
          JTextField myNumberOut1 = new JTextField ();
          JTextField myNumberOut2 = new JTextField ();
          JTextField myNumberOut3 = new JTextField ();
/**  Adding contents to frame line 1
          getContentPane().add(myLabel1);
          getContentPane().add(myNumberIn1);
          getContentPane().add(myButton1);
          getContentPane().add(myLabel4);
          getContentPane().add(myNumberOut1);
/** Adding contents to frame line 2
          getContentPane().add(myLabel2);
          getContentPane().add(myNumberIn2);
          getContentPane().add(myButton2);
          getContentPane().add(myLabel5);
          getContentPane().add(myNumberOut2);
/** Adding contents to frame line 3
          getContentPane().add(myLabel3);
          getContentPane().add(myNumberIn3);
          getContentPane().add(myButton3);
          getContentPane().add(myLabel6);
          getContentPane().add(myNumberOut3);
          Container contentPane = getContentPane();
          contentPane.setBackground(Color.LIGHT_GRAY);
          contentPane.setLayout(new GridLayout(3, 5));
          this.addWindowListener (new WindowAdapter()     {
               public void windowClosing(WindowEvent e)     {
     public static void main (String[] args)     {
          FinalProject mainFrame = new FinalProject();
          mainFrame.setVisible(true);
           public void actionPerformed(ActionEvent e){
               Container contentPane = getContentPane();
               if (e.getActionCommand().equals ("ENTER"));
               contentPane.setBackground(Color.RED);
/**                    sum = sum + myNumberIn1();
                    myNumberIn1.setText(Double.toString(sum));
              myNumberOut1.setText(Double.toString(sum));
               private static double stringToDouble(String stringObject)
               return Double.parseDouble(stringObject.trim());
}

Answer 1

I still cannot seem to get the boxes on the right to
accept the numbers I am putting in on the left. What
can I do to correct this? Please help. Thank you.You should put some code into your ActionListener to call setText on the boxes on the right. At present you don't have any, except something that is commented out.
Here's a couple of other problems, too:if (e.getActionCommand().equals ("ENTER"));First of all, that if-condition will never be true because none of your buttons have "ENTER" as their text. Several of them have "Enter" but that isn't the same thing. Even if you got the case right, this would still be a problem because you wouldn't know which button had been pressed. And finally, even if the if-condition is true, nothing will happen because you have a semi-colon at the end of it, which says "do nothing".
If you must have a single ActionListener for all those buttons, and it needs to distinguish which button was pressed, then code like this:if (e.getSource() == myButton2)will do that. However you would have to change your code to make myButton2 (etc.) instance variables of the class and not just local variables in the constructor, as they are now.