求:一道简单的音乐键盘实现程序(re的都有分啊)第一个给出完整可实现程序的给300分 z还算简单的吧.只是一些按钮发些音调,然后可以保存和播放啊》熟息java做做应该不费多少时间的. 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 只是调用一下javax.sound.midi API里的音符. package applet1;import java.awt.*;import java.awt.event.*;import java.applet.*;import java.util.*;public class MyApplet extends Applet { private boolean isStandalone = false; Button startsave = new Button(); Button stopsave = new Button(); Button playsaved = new Button(); private Keyboard key[]; private AudioClip sound[]; static AudioClip RECORD[]; static int I=0; static boolean bStartsave=false; private boolean bStopsave=true; //Get a parameter value public String getParameter(String key, String def) { return isStandalone ? System.getProperty(key, def) : (getParameter(key) != null ? getParameter(key) : def); } //Construct the applet public MyApplet() { } //Initialize the applet public void init() { try { jbInit(); } catch(Exception e) { e.printStackTrace(); }// this.setLayout(null); // width = this.size().width; // height = this.size().height; key = new Keyboard[12]; sound = new AudioClip[12]; RECORD= new AudioClip[50]; String s = new String(""); for(int i=0; i<12; i++) { s = i + ".au"; System.out.println(s); sound[i] = getAudioClip(getCodeBase(),s); } key[0] = new Keyboard(Color.white,sound[0]); key[1] = new Keyboard(Color.black,sound[1]); key[2] = new Keyboard(Color.white,sound[2]); key[3] = new Keyboard(Color.black,sound[3]); key[4] = new Keyboard(Color.white,sound[4]); key[5] = new Keyboard(Color.white,sound[5]); key[6] = new Keyboard(Color.black,sound[6]); key[7] = new Keyboard(Color.white,sound[7]); key[8] = new Keyboard(Color.black,sound[8]); key[9] = new Keyboard(Color.white,sound[9]); key[10] = new Keyboard(Color.black,sound[10]); key[11] = new Keyboard(Color.white,sound[11]);// the black key key[1].setBounds(30,40,20,60); add(key[1]); key[3].setBounds(70,40,20,60); add(key[3]); key[6].setBounds(150,40,20,60); add(key[6]); key[8].setBounds(190,40,20,60); add(key[8]); key[10].setBounds(230,40,20,60); add(key[10]);//the black key key[0].setBounds(0,40,40,110); key[2].setBounds(40,40,40,110); key[4].setBounds(80,40,40,110); key[5].setBounds(120,40,40,110); key[7].setBounds(160,40,40,110); key[9].setBounds(200,40,40,110); key[11].setBounds(240,40,40,110); add(key[0]); add(key[2]); add(key[4]); add(key[5]); add(key[7]); add(key[9]); add(key[11]); }//methead to play the saved public void plays() { if (bStopsave==false||I==0) return; for(int j=0;j<I;j++) { RECORD[j].play(); pause(); } } //Component initialization private void jbInit() throws Exception { startsave.setLabel("start saving"); startsave.setBounds(new Rectangle(60, 5, 91, 25)); startsave.addActionListener(new MyApplet_startsave_actionAdapter(this)); stopsave.setLabel("stop saving"); stopsave.setBounds(new Rectangle(156, 5, 91, 25)); stopsave.addActionListener(new MyApplet_stopsave_actionAdapter(this)); playsaved.setLabel("play saved"); playsaved.setBounds(new Rectangle(252, 5, 87, 25)); playsaved.addActionListener(new MyApplet_playsaved_actionAdapter(this)); this.setLayout(null); this.add(startsave, null); this.add(stopsave, null); this.add(playsaved, null); } //Get Applet information public String getAppletInfo() { return "Applet Information"; } //Get parameter info public String[][] getParameterInfo() { return null; }//pause public void pause() { Date d=new Date(); long t=d.getTime(); while (t+350>d.getTime()) { d=new Date(); } } void startsave_actionPerformed(ActionEvent e) { bStartsave=true; bStopsave=false; for(int j=0;j<I;j++) RECORD[I]=null; I=0; } void stopsave_actionPerformed(ActionEvent e) { bStartsave=false; bStopsave=true; } void playsaved_actionPerformed(ActionEvent e) { if (bStopsave==false||I==0) return; plays(); }}class MyApplet_startsave_actionAdapter implements java.awt.event.ActionListener { MyApplet adaptee; MyApplet_startsave_actionAdapter(MyApplet adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.startsave_actionPerformed(e); }}class MyApplet_stopsave_actionAdapter implements java.awt.event.ActionListener { MyApplet adaptee; MyApplet_stopsave_actionAdapter(MyApplet adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.stopsave_actionPerformed(e); }}class MyApplet_playsaved_actionAdapter implements java.awt.event.ActionListener { MyApplet adaptee; MyApplet_playsaved_actionAdapter(MyApplet adaptee) { this.adaptee = adaptee; } public void actionPerformed(ActionEvent e) { adaptee.playsaved_actionPerformed(e); }}//class Keyboardclass Keyboard extends Canvas{ Color keyColor = Color.white; AudioClip audio; int width,height; Keyboard(Color c, AudioClip k) { keyColor = c; setBackground(keyColor); audio = k; width = this.getSize().width; height = this.getSize().height; } public boolean mouseDown(Event event, int x, int y) { audio.play(); if(MyApplet.bStartsave==true) { MyApplet.RECORD[MyApplet.I]=audio; MyApplet.I++; return true; } else return true; } public void paint(Graphics g) { width = this.getSize().width; height = this.getSize().height; g.setColor(Color.black); g.drawRect(0,0,width-1,height-1); }}//class Keyboard 包括几个音乐的音符文件,要整体的包请发邮件给我[email protected] UTF-8 转 ANSI 关于IO读写问题,在线等 MyEclipse 有没有自带连接MSSQ jar包在哪里 webwork入门的helloworld问题,按照书上的代码来试验,搞了好几天都不成功,快郁闷死了,大家帮我看看是哪里的问题 考验大家的技术(月饼) 用java做品类管理软件 怎样得到数组的维度? 求解!40分 求通用创建文件的方法,如JPG 请问:哪里有让IE支持Applet的插件下载???急!谢谢! 如何制作单击鼠标右键然后弹出的那种菜单? 保存的问题?在线等///
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.util.*;
public class MyApplet extends Applet {
private boolean isStandalone = false;
Button startsave = new Button();
Button stopsave = new Button();
Button playsaved = new Button();
private Keyboard key[];
private AudioClip sound[];
static AudioClip RECORD[];
static int I=0;
static boolean bStartsave=false;
private boolean bStopsave=true;
//Get a parameter value
public String getParameter(String key, String def) {
return isStandalone ? System.getProperty(key, def) :
(getParameter(key) != null ? getParameter(key) : def);
} //Construct the applet
public MyApplet() {
}
//Initialize the applet
public void init() {
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
// this.setLayout(null);
// width = this.size().width;
// height = this.size().height;
key = new Keyboard[12];
sound = new AudioClip[12];
RECORD= new AudioClip[50];
String s = new String(""); for(int i=0; i<12; i++)
{
s = i + ".au";
System.out.println(s);
sound[i] = getAudioClip(getCodeBase(),s);
}
key[0] = new Keyboard(Color.white,sound[0]);
key[1] = new Keyboard(Color.black,sound[1]);
key[2] = new Keyboard(Color.white,sound[2]);
key[3] = new Keyboard(Color.black,sound[3]);
key[4] = new Keyboard(Color.white,sound[4]);
key[5] = new Keyboard(Color.white,sound[5]);
key[6] = new Keyboard(Color.black,sound[6]);
key[7] = new Keyboard(Color.white,sound[7]);
key[8] = new Keyboard(Color.black,sound[8]);
key[9] = new Keyboard(Color.white,sound[9]);
key[10] = new Keyboard(Color.black,sound[10]);
key[11] = new Keyboard(Color.white,sound[11]);
// the black key
key[1].setBounds(30,40,20,60);
add(key[1]);
key[3].setBounds(70,40,20,60);
add(key[3]);
key[6].setBounds(150,40,20,60);
add(key[6]);
key[8].setBounds(190,40,20,60);
add(key[8]);
key[10].setBounds(230,40,20,60);
add(key[10]);
//the black key
key[0].setBounds(0,40,40,110);
key[2].setBounds(40,40,40,110);
key[4].setBounds(80,40,40,110);
key[5].setBounds(120,40,40,110);
key[7].setBounds(160,40,40,110);
key[9].setBounds(200,40,40,110);
key[11].setBounds(240,40,40,110);
add(key[0]);
add(key[2]);
add(key[4]);
add(key[5]);
add(key[7]);
add(key[9]);
add(key[11]);
}
//methead to play the saved
public void plays() {
if (bStopsave==false||I==0)
return;
for(int j=0;j<I;j++)
{
RECORD[j].play();
pause();
} } //Component initialization
private void jbInit() throws Exception {
startsave.setLabel("start saving");
startsave.setBounds(new Rectangle(60, 5, 91, 25));
startsave.addActionListener(new MyApplet_startsave_actionAdapter(this));
stopsave.setLabel("stop saving");
stopsave.setBounds(new Rectangle(156, 5, 91, 25));
stopsave.addActionListener(new MyApplet_stopsave_actionAdapter(this));
playsaved.setLabel("play saved");
playsaved.setBounds(new Rectangle(252, 5, 87, 25));
playsaved.addActionListener(new MyApplet_playsaved_actionAdapter(this));
this.setLayout(null);
this.add(startsave, null);
this.add(stopsave, null);
this.add(playsaved, null);
}
//Get Applet information
public String getAppletInfo() {
return "Applet Information";
}
//Get parameter info
public String[][] getParameterInfo() {
return null;
}
//pause
public void pause()
{
Date d=new Date();
long t=d.getTime();
while (t+350>d.getTime())
{
d=new Date();
}
} void startsave_actionPerformed(ActionEvent e) {
bStartsave=true;
bStopsave=false;
for(int j=0;j<I;j++)
RECORD[I]=null;
I=0;
} void stopsave_actionPerformed(ActionEvent e) {
bStartsave=false;
bStopsave=true;
} void playsaved_actionPerformed(ActionEvent e) {
if (bStopsave==false||I==0)
return;
plays();
}
}class MyApplet_startsave_actionAdapter implements java.awt.event.ActionListener {
MyApplet adaptee; MyApplet_startsave_actionAdapter(MyApplet adaptee) {
this.adaptee = adaptee;
}
public void actionPerformed(ActionEvent e) {
adaptee.startsave_actionPerformed(e);
}
}class MyApplet_stopsave_actionAdapter implements java.awt.event.ActionListener {
MyApplet adaptee; MyApplet_stopsave_actionAdapter(MyApplet adaptee) {
this.adaptee = adaptee;
}
public void actionPerformed(ActionEvent e) {
adaptee.stopsave_actionPerformed(e);
}
}class MyApplet_playsaved_actionAdapter implements java.awt.event.ActionListener {
MyApplet adaptee; MyApplet_playsaved_actionAdapter(MyApplet adaptee) {
this.adaptee = adaptee;
}
public void actionPerformed(ActionEvent e) {
adaptee.playsaved_actionPerformed(e);
}
}
//class Keyboard
class Keyboard extends Canvas
{
Color keyColor = Color.white;
AudioClip audio;
int width,height; Keyboard(Color c, AudioClip k)
{
keyColor = c;
setBackground(keyColor); audio = k; width = this.getSize().width;
height = this.getSize().height;
}
public boolean mouseDown(Event event, int x, int y)
{
audio.play();
if(MyApplet.bStartsave==true)
{
MyApplet.RECORD[MyApplet.I]=audio;
MyApplet.I++;
return true;
}
else return true;
} public void paint(Graphics g)
{
width = this.getSize().width;
height = this.getSize().height; g.setColor(Color.black);
g.drawRect(0,0,width-1,height-1); }
}
//class Keyboard
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