Please me figure this out

[atrodeyo]

when I press the button I expected to see the textfield (TestGroupLayer) but instead I do not see anything at all. It only shows an empty frame. I am trying to learn this GroupLayer since it best suites my needs so please someones help. here is the code :

package test.gui;



 
import javax.swing.*;
import static javax.swing.GroupLayout.Alignment.*;

public class TestGroupLayer extends JPanel {
	
	JTextField textField1;
    public TestGroupLayer() {
       
    	textField1 = new JTextField ();

        GroupLayout layout = new GroupLayout(this);
        this.setLayout(layout);
        layout.setAutoCreateGaps(true);
        layout.setAutoCreateContainerGaps(true);

        layout.setHorizontalGroup(layout.createSequentialGroup()
            .addComponent(textField1)
           
            .addGroup(layout.createParallelGroup(LEADING)
                 .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(LEADING)
                   		) 
           
        )));
        layout.setVerticalGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(BASELINE)
                    .addComponent(textField1)
                 .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(BASELINE)
                      		) 
        )));
 
    }
 
}

package test.gui;

import static javax.swing.GroupLayout.Alignment.BASELINE;
import static javax.swing.GroupLayout.Alignment.LEADING;

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



public class TestLayerOne extends JPanel {

	TestLayerTwo layerTwo;
    private JButton btn;
    
    public TestLayerOne() {
        initComponents();
    }

  
    private void initComponents() {
        
    	btn = new JButton();

    	 btn.setText("Button");
         btn.addActionListener(new ActionListener() {
             public void actionPerformed(ActionEvent evt) {
                 btnActionPerformed(evt);
             }
         });
         add(btn, new GroupLayout(this));
     
    	
    	
        GroupLayout layout = new GroupLayout(this);
        this.setLayout(layout);
        layout.setAutoCreateGaps(true);
        layout.setAutoCreateContainerGaps(true);

        layout.setHorizontalGroup(layout.createSequentialGroup()
            .addComponent(btn)
           
            .addGroup(layout.createParallelGroup(LEADING)
                 .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(LEADING)
                   		) 
           
        )));
        layout.setVerticalGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(BASELINE)
                    .addComponent(btn)
                 .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(BASELINE)
                      		) 
        )));
 
    }
    
    private void btnActionPerformed(ActionEvent evt) {
        
 
    	TestGroupLayer groupLayer = new TestGroupLayer ();
    	removeAll ();
    	add (groupLayer, new GroupLayout (this));
    	validate ();
    	System.out.println("This is a Test");
    }
    
      
}

package test.gui;


import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JTabbedPane;



public class TabPanels extends JFrame{ 

	JFrame myFrame = null;
	// main to run and test this part of the program

public static void main(String [] args)  {  
    new TabPanels(); 
} 
	
	public TabPanels() { 
	    JTabbedPane tp = new JTabbedPane(); 
	    add(tp); 
	 
	    tp.addTab("Tab1",new TestLayerOne());
	    tp.addTab("Tab2", new TestGroupLayer()); 
	    tp.addTab("Tab3", new TestGroupLayer()); 
	 
	    setPreferredSize(new Dimension(1360,768));
	    pack();
	    setVisible(true);
	} 
}

[Fubarable]

My suggestion: don't use GroupLayout as it is very difficult to code by hand. Instead use nested JPanels that each use simpler layouts to satisfy your needs.

[atrodeyo]

ok.. but I still would like to know about this problem tho since I think I am so close. So please someone explain it to me .. please please

[DarrylBurke]

Do you read the responses to your questions? Evidently not.
http://www.java-forums.org/new-java/...tml#post282826

db

[atrodeyo]

well this is a new issue tho. I was able to get rid of my exception problem with yr help and I was able to see the button and the textfield also but when I press the button it disapears also I was trying with GroupLayer.

[DarrylBurke]

So once again you didn't click the link I posted.

I sometimes wonder why I bother.

db

[atrodeyo]

if you are talking about the new members guide then yes I did read it but I read it after I posted this and I didnt want to start another thread by changing the title since thats violate one of the rule too.. sorry about that... also I know you mentioned about using different layout but I really want to finish this first so thought someone hopefully and probably will help and point me to the right direction.

[Fubarable]

You may not get much help as not many folks I know use GroupLayout to hand code their layouts, so the pool of potential experts to help you in this subject is limited.