The KeyListener Interface

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The KeyListener Interface

This interface defines three methods. The keyPressed( ) and keyReleased( ) methods are invoked when a key is pressed and released, respectively. The keyTyped( ) method is invoked when a character has been entered.

For example, if a user presses and releases the A key, three events are generated in sequence: key pressed, typed, and released. If a user presses and releases the HOME key, two key events are generated in sequence: key pressed and released. 

The general forms of these methods are shown here: 

void keyPressed(KeyEvent ke) 

void keyReleased(KeyEvent ke) 

void keyTyped(KeyEvent ke)  

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