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import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTabbedPane;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
public static void main(String args[]) throws Exception {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
String titles[] = { "A", "B", "C", "D", "E", "F" };
int mnemonic[] = { KeyEvent.VK_A, KeyEvent.VK_B, KeyEvent.VK_C, KeyEvent.VK_D, KeyEvent.VK_E,
KeyEvent.VK_F };
for (int i = 0, n = titles.length; i < n; i++) {
add(tabbedPane, titles[i], mnemonic[i]);
}
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
JTabbedPane sourceTabbedPane = (JTabbedPane) changeEvent.getSource();
int index = sourceTabbedPane.getSelectedIndex();
System.out.println("Tab changed to: " + sourceTabbedPane.getTitleAt(index));
}
};
tabbedPane.addChangeListener(changeListener);
frame.add(tabbedPane, BorderLayout.CENTER);
frame.setSize(400, 150);
frame.setVisible(true);
}
static void add(JTabbedPane tabbedPane, String label, int mnemonic) {
int count = tabbedPane.getTabCount();
JButton button = new JButton(label);
tabbedPane.addTab(label, button);
tabbedPane.setMnemonicAt(count, mnemonic);
}
}
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