Missing Method in GUI

[shodai]

I have written the following test program, but I keep getting the same error: Return type for the method is missing. Does this make sense to anyone?

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

public class BUTTONtest
{
  private JFrame frame;
  private JButton btnOK;
  private JButton btnStop;
  private JButton btnStop1;
  private JButton btnStop2;
  private JButton btnStop3;
  private JTextField txtAddress;
  private JLabel lblAddress;
  
  public BUTTONtest()
  {
    //This creates our frame
    frame = new JFrame ("title goes here");
    frame.setSize (400, 350);
    frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
    
    //Sets up the window into a 3 x 2 grid
    frame.getContentPane ().setLayout (new GridLayout(3,2));
    
    JPanel panel1 = new JPanel();
    panel1.setLayout(new FlowLayout());
    frame.getContentPane().add (panel1);
    
    
    JPanel panel2 = new JPanel();
    panel2.setLayout(new FlowLayout());
    frame.getContentPane().add (panel2);
    
    
    JPanel panel3 = new JPanel();
    panel1.setLayout(new FlowLayout());
    frame.getContentPane().add (panel3);
    
    
    JPanel panel4 = new JPanel();
    panel1.setLayout(new FlowLayout());
    frame.getContentPane().add (panel4);
    
    
    JPanel panel5 = new JPanel();
    panel1.setLayout(new FlowLayout());
    frame.getContentPane().add (panel5);
    
    
    JPanel panel6 = new JPanel();
    panel1.setLayout(new FlowLayout());
    frame.getContentPane().add (panel6);
    
    btnOK = new JButton ("Hello");
    panel1.add (btnOK);
    
    btnStop = new JButton ("Stop Or I Will Shoot");
    btnStop.setForeground (Color.BLUE);
    panel1.add (btnStop);
    
    btnStop1 = new JButton ("Stop Again");
    btnStop.setBackground (Color.RED);
    panel1.add (btnStop1);
    
    btnStop2 = new JButton ("Stop 2");
    btnStop2.setForeground (Color.MAGENTA);
    btnStop2.setBackground (Color.PINK);
    panel4.add (btnStop2);
    
    btnStop3 = new JButton ("Stop a Third Time");
    btnStop3.setForeground (Color.BLACK);
    panel5.add (btnStop3);
    
    lblAddress = new JLabel ("Put in your address ");
    panel6.add (lblAddress);
    
    txtAddress = new JTextField (10);
    panel6.add(txtAddress);
    
    frame.setVisible (true);
  }
  
  public static void main (String []args)
  {
    new BUTTONtest();
  }
  
}

[Tolls]

Post the full error, highlighting the line in your code which is causing the problem.

[gimbal2]

The posted code compiles and runs just fine. Did you put it all in a file named BUTTONtest.java - case sensitive?

And do yourself a favor: use a proper Java naming convention. Name the class (and source file, and constructor) ButtonTest

[kjkrum]

This is not the cause of your problem, but you should not create or manipulate Swing objects outside the Swing thread.

This:

public static void main (String []args)
  {
    new BUTTONtest();
  }

...should be:

public static void main(String[] args) {
   SwingUtilities.invokeLater(new Runnable() {
      @Override
      public void run() {
         new BUTTONtest();
      }
   });
}

[shodai]

As per usual, the solution to one problem leads to another. I am trying to call a method in a separate class using the command button in the program. I have tried moving the code that was calling the method in the main method to the method that controls the command button. Any ideas?

[kjkrum]

Post your code.