Re: Switching between two

From:

"Knute Johnson" <knute.johnson@THRWHITE.remove-dii-this>

Newsgroups:

comp.lang.java.gui

Date:

Wed, 27 Apr 2011 15:43:23 GMT

Message-ID:

<47bcfbe0$0$27883$b9f67a60@news.newsdemon.com>

To: comp.lang.java.gui
George wrote:

Dear All,

I am a bit puzzled as to how to accomplish a task that looks simple. I
have two Jframes and each of them contains a button. I want to be able
to hide the one that has the button I click on and show the other. I
wrote the following code for that:

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

public class ButtonQuitter extends JFrame implements ActionListener
{
  JButton bQuit = new JButton("Click here to Exit");

  public ButtonQuitter()
  {
    getContentPane().setLayout( new FlowLayout() );
    bQuit.addActionListener( this );
    getContentPane().add( bQuit );
  }
    public static void newGui(){
    ButtonQuitter frame = new ButtonQuitter();
    ButtonQuitter frame12 = new ButtonQuitter();

    frame.setSize( 200, 150 );
    frame.setVisible( true );
    frame12.setSize( 200, 150 );
    frame12.setVisible( false );

    }
  public void actionPerformed( ActionEvent evt)
  {
          this.setVisible(false);
    frame12.setVisible(true);
  }

  public static void main ( String[] args )
  {
      newGui();

  }
}

However, when I run it, it complains that frame12 can not be resolved.
Could someone please offer some suggestions as to how to proceed?

Many Thanks,
George

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

public class test {
     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 final JFrame f1 = new JFrame("One");
                 final JFrame f2 = new JFrame("Two");

                 f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                 f1.setLocationByPlatform(true);
                 f2.setLocationByPlatform(true);

                 JButton b1 = new JButton("Close the other frame");
                 b1.addActionListener(new ActionListener() {
                     public void actionPerformed(ActionEvent ae) {
                         f2.setVisible(false);
                     }
                 });

                 f1.add(b1,BorderLayout.CENTER);

                 JButton b2 = new JButton("Close the other frame");
                 b2.addActionListener(new ActionListener() {
                     public void actionPerformed(ActionEvent ae) {
                         f1.setVisible(false);
                     }
                 });

                 f2.add(b2,BorderLayout.CENTER);

                 f1.pack();
                 f2.pack();

                 f1.setVisible(true);
                 f2.setVisible(true);
             }
         });
     }
}

--

Knute Johnson
email s/nospam/knute/

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