Prob with JTabbedPane

Question

Hello everybody,
I am not able to arrange the things in my TabbedPane.
I have put two tabs onto the pane.
I will paste the code, see if anybody can help.
// This is the main program, there are two other classes in two different files.
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
* @author Akila
public class Main extends JPanel implements ActionListener
     static JTabbedPane tabbedPane;
     public Main()
          super(new GridLayout(5, 5));
          //System.out.println("main prog");
          //System.out.println("creatin tab");
          JTabbedPane tabbedPane = new JTabbedPane();
          //System.out.println("callin tab1");
          JComponent tab1= new Tab1(tabbedPane);
          add(tab1);
          JComponent tab2= new Tab2(tabbedPane);
          add(tab2);
          add(tabbedPane);
     public static void main(String[] args)
          SwingUtilities.invokeLater(new Runnable()
               public void run() {
                    UIManager.put("swing.boldMetal", Boolean.FALSE);
                    createAndShowGUI();
     public static void createAndShowGUI()
          JFrame frame = new JFrame("Service Software");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          //Add content to the window.
          frame.add(new Main(), BorderLayout.CENTER);
          //Display the window.
          frame.pack();
          frame.setVisible(true);
     @Override
     public void actionPerformed(ActionEvent arg0)
}// This is Tab1. java
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
public class Tab1 extends JPanel implements ActionListener
     JLabel name;
     JComponent tab1;
     JTextArea area;
     public Tab1(JTabbedPane jt)
          JComponent tab1=new JPanel(false);
          jt.add("Services",tab1);
          tab1.setLayout(new GridLayout(5, 5));
          name= new JLabel("Name");
          JButton sub = new JButton("Submit");
          tab1.add(sub);
          JTextArea area = new JTextArea();
          tab1.add(name);
          tab1.add(area);
          add(jt);
          sub.addActionListener(this);
          jt.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
     public void actionPerformed(ActionEvent e)
}//This is Tab2.java
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
public class Tab2 extends JPanel implements ActionListener
          public Tab2(JTabbedPane jt)
               //System.out.println("tab1 prog");
               JComponent tab2=new JPanel(false);
               jt.add("New Contact",tab2);
               tab2.setLayout(new GridLayout(5, 5));
               JLabel name= new JLabel("Age");
               JTextArea area = new JTextArea();
               tab2.add(name);
               tab2.add(area);
               add(jt);
               jt.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
               public void actionPerformed(ActionEvent e)
}So when i run this program, the tabs come in the center, and it is stretched. It doesn't look nice. I want it to look nice, The tabs should be in the beginning, and the JLabel JTextArea , Submit button should be of right size.
Thanks in Advance.
Akila
Edited by: akila17 on Sep 5, 2008 10:33 PM

Answer 1

Hm,
Did you read the API of JTabbedPane ...
If not read this tutorial how to use tabbed panes.
Your problem is a layout problem ... grid layout is not a good choice for "nice looking" gui's
read this turial about layouts.
This should help you.
Olek