This example show you how to detect if the Num Lock key is in active mode. If you run the program you will get an output telling you that the Num Lock button is active or not active.
package org.kodejava.awt;
import java.awt.Toolkit;
import java.awt.event.KeyEvent;
public class NumLockState {
public static void main(String[] args) {
Toolkit toolkit = Toolkit.getDefaultToolkit();
// Get the locking state of the Num Lock button. This method
// return boolean true value if it is "on".
boolean isOn = toolkit.getLockingKeyState(KeyEvent.VK_NUM_LOCK);
System.out.println("NumLock button is " + (isOn ? "on" : "off"));
}
}
Founder at Kode Java Org
A programmer, runner, recreational diver, live in the island of Bali, Indonesia. Programming in Java, Spring, Hibernate / JPA. You can support me working on this project, buy me a cup of coffee ☕, every little bit helps, thank you 🙏
Latest posts by Wayan (see all)
- How do I convert Map to JSON and vice versa using Jackson? - June 12, 2022
- How do I find Java version? - March 21, 2022
- How do I convert CSV to JSON string using Jackson? - February 13, 2022
Wayan, thanks It helped me 🙂
Just thought I’d mention that this was not helpful to me. The Java implementation of getLockingKeyState() is bugged (see the bug parade). It only works if the java app has the focus always.
I’d hoped for help with this. On to the next site.