javaGUI– 键盘监听

键盘监听 监听按下的按键

package cn.usts.edu.lesson03;

import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class TestKeyPressListener {
    public static void main(String[] args) {
        new KeyPressFrame("键盘监听");
    }
}


class KeyPressFrame extends Frame{
    public KeyPressFrame(String title) {
        super(title);
        setBounds(100,100,400,200);
        setVisible(true);

        // 添加键盘监听
        this.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                int keyCode = e.getKeyCode();
                if (keyCode == KeyEvent.VK_SPACE){
                    System.out.println("按下了空格键");
                }
            }
        });

    }
}