java编写程序实现键盘钢琴，运用键盘事件、鼠标事件

java编写程序实现键盘钢琴，运用键盘事件、鼠标事件

界面     实现 MouseListener,MouseMotionListener,KeyListener接口，当鼠标进入不同按钮时，会播放不同的声音。当点击键盘上的1~0时，会播放不同的声音。

Win.java

package piano;

import java.awt.*;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

import java.io.FileInputStream;

import sun.audio.*;  

import java.io.*;

import java.awt.event.*;

import javax.swing.*;

public class win extends JFrame implements  MouseListener,MouseMotionListener,KeyListener{

JPanel p=new JPanel();

JButton b1=new JButton("1");

JButton b2=new JButton("2");

JButton b3=new JButton("3");

JButton b4=new JButton("4");

JButton b5=new JButton("5");

JButton b6=new JButton("6");  

JButton b7=new JButton("7");

JButton b8=new JButton("8");

JButton b9=new JButton("9");

JButton b0=new JButton("0");

JLabel a=new JLabel("Melodies and numbers");

JLabel b=new JLabel("Press on your key numbers and play melody.");

win(){

init();

setVisible(true);

setBounds(300,200,650,360);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

void init(){

p.setLayout(null);

setTitle("键盘钢琴");

p.setBackground(Color.pink);

a.setFont(new Font("Axure Handwriting",Font.BOLD,50));

a.setForeground(Color.red);

b.setFont(new Font("Axure Handwriting",Font.BOLD,20));

b.setForeground(Color.black);

a.setBounds(50,50,600,100);

b.setBounds(50,230,600,100);

b1.setBounds(50,150,50,90);

b2.setBounds(105,150,50,90);

b3.setBounds(160,150,50,90);

b4.setBounds(215,150,50,90);

b5.setBounds(270,150,50,90);

b6.setBounds(325,150,50,90);

b7.setBounds(380,150,50,90);

b8.setBounds(435,150,50,90);

b9.setBounds(490,150,50,90);

b0.setBounds(545,150,50,90);

p.add(b1);

p.add(b2);

p.add(b3);<