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);
p.add(b4);
p.add(b5);
p.add(b6);
p.add(b7);
p.add(b8);
p.add(b9);
p.add(b0);
p.add(a);
p.add(b);
add(p);
b0.addMouseListener(this);
b0.addMouseMotionListener(this);
b1.addMouseListener(this);
b1.addMouseMotionListener(this);
b2.addMouseListener(this);
b2.addMouseMotionListener(this);
b3.addMouseListener(this);
b3.addMouseMotionListener(this);
b4.addMouseListener(this);
b4.addMouseMotionListener(this);
b5.addMouseListener(this);
b5.addMouseMotionListener(this);
b6.addMouseListener(this);
b6.addMouseMotionListener(this);
b7.addMouseListener(this);
b7.addMouseMotionListener(this);
b8.addMouseListener(this);
b8.addMouseMotionListener(this);
b9.addMouseListener(this);
b9.addMouseMotionListener(this);
b0.addKeyListener(this);
b1.addKeyListener(this);
b2.addKeyListener(this);
b3.addKeyListener(this);
b4.addKeyListener(this);
b5.addKeyListener(this);
b6.addKeyListener(this);
b7.addKeyListener(this);
b8.addKeyListener(this);
b9.addKeyListener(this);
}
public void mousePressed(MouseEvent e){}
public void mouseReleased(MouseEvent e) {}
public void mouseEntered(MouseEvent e){
if(e.getSource()==b1){
try {
FileInputStream fileau=new FileInputStream("10.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b2){
try {
FileInputStream fileau=new FileInputStream("11.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b3){
try {
FileInputStream fileau=new FileInputStream("12.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b4){
try {
FileInputStream fileau=new FileInputStream("13.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b5){
try {
FileInputStream fileau=new FileInputStream("14.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b6){
try {
FileInputStream fileau=new FileInputStream("15.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b7){
try {
FileInputStream fileau=new FileInputStream("16.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b8){
try {
FileInputStream fileau=new FileInputStream("17.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b9){
try {
FileInputStream fileau=new FileInputStream("18.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getSource()==b0){
try {
FileInputStream fileau=new FileInputStream("19.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void mouseDragged(MouseEvent e){}
public void mouseMoved(MouseEvent e) {}
public void keyPressed(KeyEvent e){
if(e.getKeyChar()==KeyEvent.VK_1){
try {
FileInputStream fileau=new FileInputStream("10.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_2){
try {
FileInputStream fileau=new FileInputStream("11.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_3){
try {
FileInputStream fileau=new FileInputStream("12.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_4){
try {
FileInputStream fileau=new FileInputStream("13.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_5){
try {
FileInputStream fileau=new FileInputStream("14.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_6){
try {
FileInputStream fileau=new FileInputStream("15.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_7){
try {
FileInputStream fileau=new FileInputStream("16.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_8){
try {
FileInputStream fileau=new FileInputStream("17.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_9){
try {
FileInputStream fileau=new FileInputStream("18.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
if(e.getKeyChar()==KeyEvent.VK_0){
try {
FileInputStream fileau=new FileInputStream("19.au");
AudioStream as=new AudioStream(fileau);
AudioPlayer.player.start(as);
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
public void keyTyped(KeyEvent e){}
public void keyReleased(KeyEvent e){}
}
主函数：
package piano;
public class test4 {
public static void main(String args[]){
new win();
}
}