The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. See Java Language Changes for a summary of up

In Java, the KeyListener class gets notified when there is a change in the Key state. The states include press, release, and type. It is especially useful when some functionality on the key has to be added to your application and any keyboard activity has

Java KeyListener Interface. The Java KeyListener is notified whenever you change the state of key. It is notified against KeyEvent. The KeyListener interface is found in java.awt.event package. It has three methods. Methods of KeyListener interface. The s