时钟小应用程序

 import java.awt.*;

import java.applet.*;

import javax.swing.*;

import java.util.Date;

public class clock extends Applet implements Runnable{

public final double Ro=100.0d;

public final double Ri=93.0d;

public final double Ri2=97.0d;

public final double Rtemp=10.0d;

public final int pt=110;

public final double s=6.0d;//每秒钟秒针走的度数

public final double m=6.0d;//每分钟分针走的度数

public final double h=30.0d;//每小时时针走的度数

public final double ms=6.0d/60.0d;//每秒钟分针走的度数

public final double hm=30.0d/60.0d;//每分钟时针走的度数

public final double hs=30.0d/1200.0d;//每秒钟时针走的度数

Thread hourhand,minutehand,secondhand;//时针线程，分针线程，秒针线程

Graphics hourpen,minutepen,secondpen;//时针画笔，分针画笔，秒针画笔

Color c;

public void init(){

setSize(2*pt,2*pt);

c=new Color(225,255,255);//表盘面颜色

setBackground(Color.white);//背景色

hourhand=new Thread(this);//线程初始化

minutehand=new Thread(this);

secondhand=new Thread(this);

hourpen=getGraphics();//画笔初始化

hourpen.setColor(Color.black);

minutepen=getGraphics();

minutepen.setColor(Color.black);

secondpen=getGraphics();

secondpen.setColor(Color.red);

}

public void start(){

hourhand.start();//线程启动

minutehand.start();

secondhand.start();

}

public void paint(Graphics g){

int i,angle;

int ox,oy,ix,iy;

g.setPaintMode();

g.setColor(c);

int temp=pt-206/2;

g.fillOval(temp, temp, 206, 206);//画出钟表盘面

g.setColor(Color.black);

g.drawOval(temp, temp, 206, 206);//画出钟表外围轮廓

//画出表点

for(i=0;i<12;i++){

angle=(-1)*i*30;

ox=pt+(int)(Ro*Math.cos(3.1415926/180.0*angle));

oy=pt+(int)(Ro*Math.sin(3.1415926/180.0*angle));

ix=pt+(int)(Ri*Math.cos(3.1415926/180.0*angle));

iy=pt+(int)(Ri*Math.sin(3.1415926/180.0*angle));

switch(i){

case 0:ix=86+pt;break;

case 3:iy=-86+pt;break;

case 6:ix=-86+pt;break;

case 9:iy=86+pt;break;

default:break;

}

g.drawLine(ix,iy,ox,oy);

}

for(i=0;i<60;i++){

angle=(-1)*i*6;

ox=pt+(int)(Ro*Math.cos(3.1415926/180.0*angle));

oy=pt+(int)(Ro*Math.sin(3.1415926/180.0*angle));

ix=pt+(int)(Ri2*Math.cos(3.1415926/180.0*angle));

iy=pt+(int)(Ri2*Math.sin(3.1415926/180.0*angle));

g.drawLine(ix,iy,ox,oy);

}

}

@SuppressWarnings("deprecation")

public void run(){

int hours,minutes,seconds;

double angleh,anglem,angles;

double angleh2,anglem2,angles2;

int x1,y1,x2,y2,x3,y3;

int x4,y4,x5,y5,x6,y6;

Date time=new Date();//时间类初始化

seconds=time.getSeconds();

minutes=time.getMinutes();

hours=time.getHours();

angles=((double)seconds)*s;

angles-=90.0d;

angles2=(angles+180.0)%360;

anglem=((double)minutes)*m+((double)seconds)*ms;

anglem-=90.0d;

anglem2=(anglem+180.0)%360;

angleh=((double)hours)*h+((double)minutes)*hm+((double)seconds)*hs;

angleh-=90.0d;

angleh2=(angleh+180.0)%360;

x1=(int)(90.0d*Math.cos(3.1415926/180.0*angles))+pt;

y1=(int)(90.0d*Math.sin(3.1415926/180.0*angles))+pt;

x4=(int)(Rtemp*Math.cos(3.1415926/180.0*angles2))+pt;

y4=(int)(Rtemp*Math.sin(3.1415926/180.0*angles2))+pt;

x2=(int)(75.0d*Math.cos(3.1415926/180.0*anglem))+pt;

y2=(int)(75.0d*Math.sin(3.1415926/180.0*anglem))+pt;

x5=(int)(Rtemp*Math.cos(3.1415926/180.0*anglem2))+pt;

y5=(int)(Rtemp*Math.sin(3.1415926/180.0*anglem2))+pt;

x3=(int)(65.0d*Math.cos(3.1415926/180.0*angleh))+pt;

y3=(int)(65.0d*Math.sin(3.1415926/180.0*angleh))+pt;

x6=(int)(Rtemp*Math.cos(3.1415926/180.0*angleh2))+pt;

y6=(int)(Rtemp*Math.sin(3.1415926/180.0*angleh2))+pt;

while(true){

Date time1=new Date();

seconds=time1.getSeconds();

minutes=time1.getMinutes();

hours=time1.getHours();

angles=((double)seconds)*s;

angles-=90.0d;

angles2=(angles+180.0)%360;

anglem=((double)minutes)*m+((double)seconds)*ms;

anglem-=90.0d;

anglem2=(anglem+180.0)%360;

angleh=((double)hours)*h+((double)minutes)*hm+((double)seconds)*hs;

angleh-=90.0d;

angleh2=(angleh+180.0)%360;

if(Thread.currentThread()==secondhand){//画秒针

secondpen.setColor(c);

secondpen.drawLine(pt, pt, x1, y1);

secondpen.drawLine(pt, pt, x4, y4);

x1=(int)(90.0d*Math.cos(3.1415926/180.0*angles))+pt;

y1=(int)(90.0d*Math.sin(3.1415926/180.0*angles))+pt;

x4=(int)(Rtemp*Math.cos(3.1415926/180.0*angles2))+pt;

y4=(int)(Rtemp*Math.sin(3.1415926/180.0*angles2))+pt;

secondpen.setColor(Color.red);

secondpen.drawLine(pt, pt, x1, y1);

secondpen.drawLine(pt, pt, x4, y4);

try{

Thread.sleep(40);

}

catch(InterruptedException e){

}

}

else if(Thread.currentThread()==minutehand){//画分针

minutepen.setColor(c);

minutepen.drawLine(pt, pt, x2, y2);

minutepen.drawLine(pt, pt, x5, y5);

x2=(int)(75.0d*Math.cos(3.1415926/180.0*anglem))+pt;

y2=(int)(75.0d*Math.sin(3.1415926/180.0*anglem))+pt;

x5=(int)(Rtemp*Math.cos(3.1415926/180.0*anglem2))+pt;

y5=(int)(Rtemp*Math.sin(3.1415926/180.0*anglem2))+pt;

minutepen.setColor(Color.black);

minutepen.drawLine(pt, pt, x2, y2);

minutepen.drawLine(pt, pt, x5, y5);

try{

Thread.sleep(40);

}

catch(InterruptedException e){

}

}

else if(Thread.currentThread()==hourhand){//画时针

hourpen.setColor(c);

hourpen.drawLine(pt, pt, x3, y3);

hourpen.drawLine(pt, pt, x6, y6);

x3=(int)(50.0d*Math.cos(3.1415926/180.0*angleh))+pt;

y3=(int)(50.0d*Math.sin(3.1415926/180.0*angleh))+pt;

x6=(int)(Rtemp*Math.cos(3.1415926/180.0*angleh2))+pt;

y6=(int)(Rtemp*Math.sin(3.1415926/180.0*angleh2))+pt;

hourpen.setColor(Color.black);

hourpen.drawLine(pt, pt, x3, y3);

hourpen.drawLine(pt, pt, x6, y6);

try{

Thread.sleep(40);

}

catch(InterruptedException e){

}

}

}

}

}