用java写的音乐时钟万年历

import java.awt.*;

import java.util.*;

import java.awt.image.*;

import java.applet.*;

//Film是描述滚动图片的类

class Film extends Canvas implements Runnable

{

Thread move;

Image thumb;

int startPoint=0;//起始位置

final int thumbWidth=23;//小图片的宽度

public Film(Image thumb)

{

this.thumb=thumb;

if(move==null)

{

move=new Thread(this);

move.start();

}

}

public void run()

{

while(true)

{

repaint();

try

{

Thread.sleep(100);

}

catch(InterruptedException e)

{}

startPoint-=1;//向左移一位

startPoint%=thumbWidth;//超过小图片宽度后回到起始点}

}

public void paint(Graphics g)

{

update(g);

}

public void update(Graphics g)

{int i;

Dimension d=size();

Image offImage=createImage(d.width,d.height); Graphics offG=offImage.getGraphics();

offG.setColor(new Color(160,255,160));

offG.fillRect(0,0,d.width,d.height);

for(i=startPoint;i<=d.width;i+=thumbWidth) offG.drawImage(thumb,i,0,this);

g.drawImage(offImage,0,0,this);

}

}

//AudioPlayer是描述底部音乐播放条的类

class AudioPlayer extends Panel

{

AudioClip au;

Button play,loop,stop;

Label label;

AudioPlayer(AudioClip au)

{

setLayout(new FlowLayout(FlowLayout.RIGHT,10,5)); add(play=new Button("play"));

add(loop=new Button("loop"));

add(stop=new Button("stop"));

this.au=au;

setBachground(new Color(160,255,160));

}

public boolean action(Event e,Object p)

{

if(e.target==play)

{au.play();

}

else if(e.target==loop)

{au.loop();}

else if(e.target==stop)

{au.stop();}

return super.action(e,p);

}

}

//Calendar是描述日历和时钟的类

class Calendar extends Panel implements Runnable {

Button nextYear,nextMonth,nextDate,lastYear,lastMonth,lastDate;

TextField year,month,date;

Film myFilm;

Thread clock;

AudioClip chirp;

Date today=new Date();

String weekName[]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};

String monthName[]={"一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"};

int weekColor[]={0xcc6633,0xcccc33,0xcccc33,0xcccc33,0xcccc33,0xcccc33,0x3399cc};

Calendar(Image thumb,AudioClip au)

{

setLayout(new FlowLayout(FlowLayout.LEFT,3,13));

add(lastYear=new Button("<"));

add(year=new TextField(""+(1900+today.getYear()),4);

add(nextYear=new Button(">"));

add(lastMonth=new Button("<"));

add(month=new TextField(""+(today.getMonth()+1),2));

add(nextMonth=new Button(">"));

add(lastDate=new Button("<"));

add(date=new TextField(""+today.getDate(),2));

add(nextDate=new Button(">"));

myFilm=new Film(thumb);

myFilm.resize(270,15);

add(myFilm);

chirp=au;

}

public void run()

{

long startTime=System.currentTimeMillis();//记录线程开始的时间

while(true)

{

repaint();

startTime+=1000;//计算下次醒来的时间

try{

Thread.sleep(Math.max(0,startTime-System.currentTimeMillis()));

//保证绘图时间和睡眠时间相加为1s，若绘图超过1s，则线程不睡眠

}

catch(InterruptedException e) {}

}

}

public void paint(Graphics g)