This example show you how to detect if the Caps Lock key is in active mode.
package org.kodejava.example.awt;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
public class CapsLockState {
public static void main(String[] args) {
//
// Get the locking state of the Caps Lock button. If it is "on" this method
// return boolean true value.
//
boolean isOn = Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK);
System.out.println("CapsLock button is " + (isOn ? "on" : "off"));
}
}