newclock.java

设置时钟界面并具有日期功能

import java.awt.*;
import javax.swing.*;
import java.util.*;

public class newClock extends JFrame {

	double run=0;
    public 	newClock()
	   {
		setTitle("Owner Clock");
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		clockPanel ab = new clockPanel();
		this.add(ab);
		setSize(500,500);		
	   }
	
	
	public static void main(String[] args)
	  {
		newClock e = new newClock();
		e.setVisible(true);
	   }
	

	class clockPanel extends JPanel{		
		public void paint(Graphics g)
		   {
//插入图片			
			ImageIcon im=new ImageIcon(getClass().getResource("123.jpg"));
			g.drawImage(im.getImage(),0,0,this);

//时钟的钟面		
			int r=150;		
			Insets insets = getInsets();
			int L = insets.left , T = insets.top;
			g.setColor(Color.red);
			int x0 = L+100+r , y0 = T+50+r;
			g.drawOval(L+100, T+50, 2*r, 2*r);
			g.drawOval(x0-r+15, y0-r+15,2*(r-15),2*(r-15));
	
//时钟上的刻度
			
			g.setColor(Color.green);
			for(int i=1,ang=60;i<=12;i++,ang-=30)       
			   {
				int x,y;
				x=(int)(r*Math.cos(Math.PI*ang/180)+x0);
				y=(int)(y0-r*Math.sin(Math.PI*ang/180));			
				if(0<=ang&&ang<90)      g.drawString(""+i, x-10 ,y+10);
				if(90<=ang&&ang<180)    g.drawString(""+i, x ,y+10);
				if(180<=ang&&ang<270)   g.drawString(""+i, x ,y);
				if(270<=ang&&ang<360)   g.drawString(""+i, x-10 ,y);
				if(ang==0) ang=360;
			   }

//	获取Windows时间
			int hour,min,sec,year,month,data,week;
			String st;
			String weekly="";
			Calendar now = Calendar.getInstance();		
			hour = now.get(Calendar.HOUR_OF_DAY);
			min = now.get(Calendar.MINUTE);
			sec = now.get(Calendar.SECOND);
			year = now.get(Calendar.YEAR);
			month = now.get(Calendar.MONTH)+1;
			data = now.get(Calendar.DAY_OF_MONTH);
			week = now.get(Calendar.WEEK_OF_MONTH);
			switch(week){
			    case 1:weekly = "星期日";break;
			    case 2:weekly = "星期一";break;
			    case 3:weekly = "星期二";break;
			    case 4:weekly = "星期三";break;
			    case 5:weekly = "星期四";break;
			    case 6:weekly = "星期五";break;
			    case 7:weekly = "星期六";break;	
			     }	
			
//	走马灯显示	                                                                     
			g.setColor(Color.black);
			if(hour<10) st="0"+hour;      else st=""+hour;
			if(min<10)  st=st+" :0"+min;  else st=st+" :"+min;
			if(sec<10)  st=st+" :0"+sec;  else st=st+" :"+sec;
			st=weekly+"     日期:"+year+"年"+month+"月"+data+"日     当前时间："+st;		
			Font f=new Font(st,Font.PLAIN+Font.BOLD,15);
			g.setFont(f);
			run+=0.1;
			if(run>500) run=-150;
			g.drawString(st,(int)run,T+400);	
			
//	秒针		
			double s=2*Math.PI*(sec-15)/60;
			int sx,sy;
			g.setColor(Color.red);
			sx=(int)(x0+Math.cos(s)*(r-10));
			sy=(int)(y0+Math.sin(s)*(r-10));
			g.drawLine(x0, y0,sx ,sy );
			
//	分针
	        double m=2*Math.PI*(min+sec/60-15)/60;
	       	g.setColor(Color.gray);
			int mr1=120,mr2=90,mr3=10;
			
			int x_m[]={x0+(int)(mr3* Math.cos(m+Math.PI/2)),
					x0+(int)(mr3* Math.cos(m-Math.PI/2)),
					x0 + (int)(mr2* Math.cos(m-Math.PI/20)),
					x0 + (int)(mr1* Math.cos(m)),
					x0 + (int)(mr2* Math.cos(m+Math.PI/20))};

			int y_m[]={y0+(int)(mr3* Math.sin(m+Math.PI/2)),
					y0+(int)(mr3* Math.sin(m-Math.PI/2)),
					y0 + (int)(mr2* Math.sin(m-Math.PI/20)),
					y0 + (int)(mr1* Math.sin(m)),
					y0 + (int)(mr2* Math.sin(m+Math.PI/20))};
						        
			g.fillPolygon(x_m, y_m, 5);

//	时针	
		
	        double h=2*Math.PI*(hour+min/60+sec/360-15)/12;
			g.setColor(Color.cyan);
			int hr1=90,hr2=60,hr3=10;
				
			int x_h[]={x0+(int)(hr3* Math.cos(h+Math.PI/2)),
					x0 + (int)(hr3* Math.cos(h-Math.PI/2)),
					x0 + (int)(hr2* Math.cos(h-Math.PI/12)),
					x0 + (int)(hr1* Math.cos(h)),
					x0 + (int)(hr2* Math.cos(h+Math.PI/12))};

			int y_h[]={y0+(int)(hr3* Math.sin(h+Math.PI/2)),
					y0 + (int)(hr3* Math.sin(h-Math.PI/2)),
					y0 + (int)(hr2* Math.sin(h-Math.PI/12)),
					y0 + (int)(hr1* Math.sin(h)),
					y0 + (int)(hr2* Math.sin(h+Math.PI/12))};
			g.fillPolygon(x_h, y_h, 5);
						
			repaint();
		   }
	}
	
}