keyeventhandler.java

Java程序设计技巧与开发实例附书源代码。

import java.awt.*;
import java.awt.event.*;

public class KeyEventHandler
    implements KeyListener {
  public void keyPressed(KeyEvent ke) {
    if (ke.getKeyChar() == 'q') {
      System.exit(0);
    }
  }

  public void keyReleased(KeyEvent ke) {}

  public void keyTyped(KeyEvent ke) {
    System.out.println("Key Listener: Key pressed: " + ke.getKeyChar());
  }
}