JAVA时钟转动的代码 java数字时钟程序

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

java编程利用按钮实现时钟的停止和开始功能（原代码）

如下JAVA时钟转动的代码：

import java.awt.*;

import java.awt.event.*;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.Timer;

import java.awt.geom.*;

import java.util.*;

class Clock extends Canvas

implements ActionListener{

static JButton jb=new JButton("开始");

static JButton jb1=new JButton("暂停");

Date date;

Timer secondTime;

int hour,munite,second;

Line2D secondLine,muniteLine,hourLine;

int a,b,c;

double pointSX[]=new double[60],//用来表示秒针端点坐标JAVA时钟转动的代码的数组

pointSY[]=new double[60],

pointMX[]=new double[60], //用来表示分针端点坐标的数组

pointMY[]=new double[60],

pointHX[]=new double[60], //用来表示时针端点坐标的数组

pointHY[]=new double[60];

Clock()

{ secondTime=new Timer(1000,this);

pointSX[0]=0; //12点秒针位置

pointSY[0]=-100;

pointMX[0]=0; //12点分针位置

pointMY[0]=-90;

pointHX[0]=0; //12点时针位置

pointHY[0]=-70;

double angle=6*Math.PI/180; //刻度为6度

for(int i=0;i59;i++) //计算出各个数组中的坐标

{ pointSX[i+1]=pointSX[i]*Math.cos(angle)-Math.sin(angle)*pointSY[i];

pointSY[i+1]=pointSY[i]*Math.cos(angle)+pointSX[i]*Math.sin(angle);

pointMX[i+1]=pointMX[i]*Math.cos(angle)-Math.sin(angle)*pointMY[i];

pointMY[i+1]=pointMY[i]*Math.cos(angle)+pointMX[i]*Math.sin(angle);

pointHX[i+1]=pointHX[i]*Math.cos(angle)-Math.sin(angle)*pointHY[i];

pointHY[i+1]=pointHY[i]*Math.cos(angle)+pointHX[i]*Math.sin(angle);

}

for(int i=0;i60;i++)

{ pointSX[i]=pointSX[i]+120; //坐标平移

pointSY[i]=pointSY[i]+120;

pointMX[i]=pointMX[i]+120; //坐标平移

pointMY[i]=pointMY[i]+120;

pointHX[i]=pointHX[i]+120; //坐标平移

pointHY[i]=pointHY[i]+120;

}

secondLine=new Line2D.Double(0,0,0,0);

muniteLine=new Line2D.Double(0,0,0,0);

hourLine=new Line2D.Double(0,0,0,0);

secondTime.start(); //秒针开始计时

}

public void paint(Graphics g)

{ for(int i=0;i60;i++) //绘制表盘上的小刻度和大刻度

{ int m=(int)pointSX[i];

int n=(int)pointSY[i];

if(i%5==0)

{ g.setColor(Color.red);

g.fillOval(m-4,n-4,8,8);

}

else

{ g.setColor(Color.cyan);

g.fillOval(m-2,n-2,4,4);

}

g.fillOval(115,115,10,10); //钟表中心的实心圆

Graphics2D g_2d=(Graphics2D)g;

g_2d.setColor(Color.red);

g_2d.draw(secondLine);

BasicStroke bs=

new BasicStroke(3f,BasicStroke.CAP_ROUND,BasicStroke.JOIN_MITER);

g_2d.setStroke(bs);

g_2d.setColor(Color.blue);

g_2d.draw(muniteLine);

bs=new BasicStroke(6f,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER);

g_2d.setStroke(bs);

g_2d.setColor(Color.green);

g_2d.draw(hourLine);

}

public void actionPerformed(ActionEvent e)

{ if(e.getSource()==secondTime){

date=new Date();

String s=date.toString();

hour=Integer.parseInt(s.substring(11,13));

munite=Integer.parseInt(s.substring(14,16));

second=Integer.parseInt(s.substring(17,19)); //获取时间中的秒

int h=hour%12;

a=second; //秒针端点的坐标

b=munite; //分针端点的坐标

c=h*5+munite/12; //时针端点的坐标

secondLine.setLine(120,120,(int)pointSX[a],(int)pointSY[a]);

muniteLine.setLine(120,120,(int)pointMX[b],(int)pointMY[b]);

hourLine.setLine(120,120,(int)pointHX[c],(int)pointHY[c]);

repaint();

} if(e.getSource()==jb){

secondTime.start();

}if(e.getSource()==jb1){

secondTime.stop();

}

public static void main(String args[]){

JFrame win=new JFrame("时钟");

JPanel jp=new JPanel();

jp.add(jb);

jp.add(jb1);

Clock clock=new Clock();

jb.addActionListener(clock);

jb1.addActionListener(clock);

win.add(clock,BorderLayout.CENTER);

win.add(jp,"South");

win.setVisible(true);

win.setSize(246,300);

win.setDefaultCloseOperation(3) ;

win.validate();

}

运行截图：

有问题就追问，满意请采纳。

相关问答

Q1: 用java设计和编写一个指针式时钟程序,应用线程实现时钟的走动，有的发我邮箱，361390264@qq.com，谢啦！！

package 时钟;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.image.BufferedImage;

import java.util.Calendar;

import java.util.Date;

import javax.swing.JApplet;

/**

* @author Jiang

public class Clock2 extends JApplet implements Runnable{

double PI=Math.PI;//圆周率

double hourlen=50;//时针长度

double minutelen=70;//分针长度

double secondlen=90;//秒针长度

int yuanxinx=100,yuanxiny=100;//圆心坐标

int banjin=100;//半径长度

int qix,qiy,zhongxh,zhongxm,zhongxs,zhongyh,zhongym,zhongys;//各指针的起点和终点坐标（起点一致）

Thread th;

BufferedImage buf;

int hour,minute,second;//记录当前时间

Calendar calendar;//用于获取当前时间

Graphics g1;//用于内存绘图

public void init(){

hour=minute=second=0;

buf=new BufferedImage(400,400,BufferedImage.TYPE_INT_ARGB);//控制内存绘图区域大小

g1=buf.getGraphics();//创建缓冲绘图区

this.setSize(400,400);

}

public void start(){

if(th==null)

th=new Thread(this);

th.start();//启动线程

}

public void stop(){

th=null;//终止线程

}

public void run(){//线程的覆盖方法

while(true){

try{

th.sleep(1000);

}catch(Exception e){}

//用背景色填充绘图区，擦除上次绘图

g1.setColor(this.getBackground());

//g1.fillRect(yuanxinx-banjin,yuanxiny-banjin,2*banjin,2*banjin);

g1.fillRect(0,0,400,400);

repaint();

}

public void paint(Graphics g){

//将图像先画到缓冲区

g1.setColor(this.getForeground());

//绘制时钟刻盘（刻度长度为8）

g1.drawOval(yuanxinx-banjin,yuanxiny-banjin,yuanxinx+banjin,yuanxiny+banjin);

//特殊位置简便画法

//g1.drawLine(yuanxinx-banjin,yuanxiny,yuanxinx-banjin+8,yuanxiny);//9

//g1.drawLine(yuanxinx,yuanxiny-banjin,yuanxinx,yuanxiny-banjin+8);//12

//g1.drawLine(yuanxinx+banjin,yuanxiny,yuanxinx+banjin-8,yuanxiny);//3

//g1.drawLine(yuanxinx,yuanxiny+banjin,yuanxinx,yuanxiny+banjin-8);//6

//1

int qixx=(int)(yuanxinx-banjin*Math.cos((0.5+1.0/6)*PI));

int qiyy=(int)(yuanxiny-banjin*Math.sin((0.5+1.0/6)*PI));

int zhongxx=(int)(yuanxinx-(banjin-8)*Math.cos((0.5+1.0/6)*PI));

int zhongyy=(int)(yuanxiny-(banjin-8)*Math.sin((0.5+1.0/6)*PI));