复制代码 代码如下:
//package com.clock;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.swing.*;

import javax.swing.JFrame;

public class Clock extends JFrame implements ActionListener{
private final double RAD=Math.PI/180;

public Clock(){
super("Clock");
setSize(400, 400);
setLocation(400, 200);
setVisible(true);
setResizable(true);
setBackground(Color.white);
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
System.exit(0);
}

});
ActionListener drawClock=new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
repaint();
}
};
new Timer(1000,drawClock).start();

}
@Override
public void actionPerformed(ActionEvent e) {}
public void paint(Graphics g){
Graphics2D g2=(Graphics2D)g;
Insets insert=getInsets();
int h=getSize().height;
g2.setStroke(new BasicStroke(3.0f));
g.drawOval(40,40, h-80,h-80);

int r=200;
int R1=140;
int initRad=60;
for(int i=1;i<=5;i++){
int x0= (int) (r+R1*Math.cos(RAD*initRad));
int y0= (int) (r-R1*Math.sin(RAD*initRad));
g.setFont(new Font("楷体", Font.BOLD, 20));
g.drawString(""+i, x0, y0);
initRad-=30;
}
int R2=150;
int initRad2=-120;
for(int i=7;i<=11;i++){
int x0= (int) (r+R2*Math.cos(RAD*initRad2));
int y0= (int) (r-R2*Math.sin(RAD*initRad2));
g.setFont(new Font("楷体", Font.BOLD, 20));
g.drawString(""+i, x0, y0);
initRad2-=30;
}
g.drawString("6", 190, 350);
g.drawString("12", 190, 60);

Calendar now=new GregorianCalendar();
int hour=now.get(Calendar.HOUR_OF_DAY);
int minute=now.get(Calendar.MINUTE);
int second=now.get(Calendar.SECOND);
String time;
if(hour<10){time="0"+hour;}else{time=""+hour;}

if(minute<10){time+=":0"+minute;}else{time+=":"+minute;}

if(second<10){time+=":0"+second;}else{time+=":"+second;}

g.setColor(Color.WHITE);
g.fillRect(10, 30, 90, 28);
g.setColor(Color.red);
g.drawString(time, 10, 50);

int S=90-second*6;
int M=90-minute*6;
int H=90-hour*30-minute/2;

g2.setStroke(new BasicStroke(1.0f));

int x=(int) (200+130*Math.cos(RAD*S));
int y=(int) (200-130*Math.sin(RAD*S));

int SS=90-(second-1)*6;
int xx=(int) (200+130*Math.cos(RAD*SS));
int yy=(int) (200-130*Math.sin(RAD*SS));
g.setColor(getBackground());
g.drawLine(200, 200, xx, yy);
g.setColor(Color.black);
g.drawLine(200, 200, x, y);

g2.setStroke(new BasicStroke(2.2f));

int x1=(int) (200+110*Math.cos(RAD*M));
int y1=(int) (200-110*Math.sin(RAD*M));

int MM=90-(minute-1)*6;
int x11=(int) (200+110*Math.cos(RAD*MM));
int y11=(int) (200-110*Math.sin(RAD*MM));
g.setColor(getBackground());
g.drawLine(200, 200, x11, y11);
g.setColor(Color.blue);
g.drawLine(200, 200, x1, y1);

g2.setStroke(new BasicStroke(4.3f));
int xx1=(int) (200+90*Math.cos(RAD*H));
int yy1=(int) (200-90*Math.sin(RAD*H));

int HH=90-(hour-1)*30-minute/2;;
int xxx1=(int) (200+90*Math.cos(RAD*HH));
int yyy1=(int) (200-90*Math.sin(RAD*HH));
g.setColor(Color.white);
g.drawLine(200, 200, xxx1, yyy1);
g.setColor(Color.green);
g.drawLine(200, 200, xx1, yy1);
}
public static void main(String[] args) {
new Clock();
}

}