键盘监听

package com.jia.lesson;

import javafx.scene.input.KeyCode;

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

//键
public class TestKeyListener {
    public static void main(String[] args) {
        Keyframe keyframe = new Keyframe();
    }
}

class Keyframe extends frame {
    public Keyframe() {
        setBounds(1, 2, 300, 400);
        setVisible(true);

        this.addKeyListener(new KeyAdapter() {

            //键盘按下
            @Override
            public void keyPressed(KeyEvent e) {
                //键盘按下的是哪一个
                int keyCode = e.getKeyCode();
                System.out.println(keyCode);
                if (keyCode == KeyEvent.VK_UP) {
                    System.out.println("你按下了上键");
                }

                //根据按下不同操作,产生不同结果
            }
        });
    }
}