testkey.java

来自「北京尚学堂J2SE所有的源代码！！北京尚学堂J2SE所有的源代码！！」· Java 代码 · 共 27 行

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

public class TestKey {
	public static void main(String[] args) {
		new KeyFrame().launchFrame();
	}
}

class KeyFrame extends Frame {
	public void launchFrame() {
		setSize(200, 200);
		setLocation(300,300);
		addKeyListener(new MyKeyMonitor());
		setVisible(true);
	}
	
	class MyKeyMonitor extends KeyAdapter {
		public void keyPressed(KeyEvent e) {
			int keyCode = e.getKeyCode();
			if(keyCode == KeyEvent.VK_UP) {
				System.out.println("UP");
			}
		}
	}
}