Tab change listener : ChangeListener « Swing Event « Java Tutorial

1. Java Tutorial
2. Swing Event
3. ChangeListener

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class Test extends JFrame {
  JTabbedPane tabs = new JTabbedPane();

  public Test() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel p = new JPanel();
    p.add(new JButton("Button on Tab 0"));
    tabs.addTab("Tab 0", p);

    p = new JPanel();
    p.add(new JTextField("Text on Tab 1"));
    tabs.addTab("Tab 1", p);

    tabs.addChangeListener(new ChangeListener() {
      public void stateChanged(ChangeEvent e) {
        System.out.println("Tab=" + tabs.getSelectedIndex());
      }
    });
    getContentPane().add(tabs, "Center");
    pack();
  }

  public static void main(String[] args) {
    new Test().setVisible(true);
  }
}

15.9.ChangeListener
	15.9.1.	Listening to JMenu Events with a ChangeListener: register a ChangeListener with a JMenu
	15.9.2.	Registers a change listener on a slider that controls animation speed. The change listener ignores the change events until the user releases the slider.
	15.9.3.	Uses a change listener on the selection model of a color chooser to learn when the user changes the current color.
	15.9.4.	Uses a change listener on a date-field spinner to change the color of the text as the spinner's date changes.
	15.9.5.	Tab change listener
	15.9.6.	Get value of BoundedRangeModel in its change listener