To assign a keyboard shortcut for accessing JTabbedPane
‘s tab you can use the setMnemonicAt(int tabIndex, int mnemonic)
method of the JTabbedPane
class. The tabIndex
parameter is a zero-based value parameter which means that the first tab is at index number 0
. For the mnenomic
parameter you can use constants value defined in the java.awt.event.KeyEvent
class.
Here is an example in action on how to assign keyboard shortcut to JTabbedPane
‘s tabs. To access the tabs you can use the ALT + A, ALT + B, ALT + C and ALT + D keyboard combination.
package org.kodejava.example.swing;
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
public class TabbedPaneKeyboardShortcut extends JPanel {
public TabbedPaneKeyboardShortcut() {
initializeUI();
}
private void initializeUI() {
this.setLayout(new BorderLayout());
this.setPreferredSize(new Dimension(500, 200));
JTabbedPane pane = new JTabbedPane();
pane.addTab("A Tab", new JPanel());
pane.addTab("B Tab", new JPanel());
pane.addTab("C Tab", new JPanel());
pane.addTab("D Tab", new JPanel());
pane.setMnemonicAt(0, KeyEvent.VK_A);
pane.setMnemonicAt(1, KeyEvent.VK_B);
pane.setMnemonicAt(2, KeyEvent.VK_C);
pane.setMnemonicAt(3, KeyEvent.VK_D);
this.add(pane, BorderLayout.CENTER);
}
public static void showFrame() {
JPanel panel = new TabbedPaneKeyboardShortcut();
panel.setOpaque(true);
JFrame frame = new JFrame("JTabbedPane Demo");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setContentPane(panel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
TabbedPaneKeyboardShortcut.showFrame();
}
});
}
}
The output of the code snippet above is:
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