Java Implementation Clock

Package Com.js.ai.modules.pointwall.testxfz;import Java.awt.color;import Java.awt.dimension;import Java.awt.Font; Import Java.awt.graphics;import java.awt.graphics2d;import Java.text.dateformat;import Java.util.Calendar;import Java.util.date;import Java.util.gregoriancalendar;import Javax.swing.jframe;public class ClockDemo extends JFrame Implements runnable{thread clock;final int xpoint=180;final int ypoint=180;final int R=80;int xhour=0,yhour=0,xsecond=0 , Ysecond=0,xmin=0,ymin=0;public Clockdemo () {super ("Digital Clock"), SetFont (New Font ("Arial", Font.Bold,)); start (); SetSize ( SetVisible (True); Setdefaultcloseoperation (jframe.exit_on_close);} public void Start ()//START process {if (clock==null)//If process is null value {clock=new Thread (this);//Instantiate process Clock.start ();//START process}}public void Run ()//runs the process {while (Clock!=null) {repaint ();//calls the Paint method to redraw the interface try {thread.sleep (1000);//thread pauses for one second (1000 milliseconds)} catch ( Interruptedexception e) {e.printstacktrace ();}}} public void Stop ()//stop process {clock=null;} public void Paint (Graphics g)//paint method for overloaded components{graphics2d g2= (graphics2d) g;//get Graphics2D object DateFormat dateformat=dateformat.getdateinstance (DateFormat.FULL); Calendar now =new GregorianCalendar ();//Instantiate Calendar Object Now.settime (new Date ());//dateformat.format (Now.gettime ()) String Timeinfo= "";//output information int hour=now.get (calendar.hour_of_day);//Get hours int minute=now.get (calendar.minute);//Get fractional int Second=now.get (Calendar.second);//Gets the number of seconds if (hour<=9) timeinfo+= "0" +hour+ ":";//Format Output elsetimeinfo+=hour+ ":"; if ( minute<=9) timeinfo+= "0" +minute+ ":"; elsetimeinfo+=minute+ ":"; if (second<=9) timeinfo+= "0" +second+ ":"; Elsetimeinfo+=second+ ":"; G.setcolor (Color.yellow);//set current color to yellow dimension dim=getsize ();//Get window size g.fillrect (0, 0, Dim.width, dim.height);//Fill Background g.setcolor (color.red);//Set Current color g.drawstring (Timeinfo, 130, 340);//Display time string G.setcolor ( Color.green), g.DrawString (Dateformat.format (Now.gettime ()), 20,60), G.setcolor (Color.Black); G.setFont (New Font (" San_serif ", Font.Bold,)); for (int i=0,num=12;i<360;i+=6) {double Alfa=math.toradians (i); int xpox=xpoint+ (int) (R *math.sIn (ALFA)), int ypos=ypoint-(int) (R*math.cos (Alfa)), if (i==0) {if (num%3==0) G.setcolor (color.red);//Number 3, 6,9,12 for Red Elseg.setcolor (Color.Black); The remaining numbers are black g.drawstring ("" +num,xpox-5,ypos+3); Write digital num= (num+1);} else {g.setcolor (color.black); g.DrawString (".", Xpox,ypos);}} G.setcolor (Color.Black); G.filloval (xpoint-4,ypoint-4,8,8);//Draw the second hand xsecond= (int) (xpoint+ (R-10) *math.sin (second* MATH.PI/60)); ysecond= (int) (ypoint-(R-10) *math.cos (second* (2*MATH.PI/60))); G.setcolor (color.red); G.drawline ( Xpoint,ypoint,xsecond,ysecond);//Draw minute hand xmin= (int) (xpoint+ (R-20) *math.sin ((MINUTE+SECOND/60) * (2*MATH.PI/60)); yMin = (int) (ypoint-(R-20) *math.cos ((MINUTE+SECOND/60) * (2*MATH.PI/60)); G.setcolor (color.red); G.drawline (Xpoint, Ypoint,xmin,ymin);//Draw the hour xhour= (int) (xpoint+ (R-30) *math.sin ((HOUR+MINUTE/60+SECOND/60/60) * (2*MATH.PI/12))); YHour = (int) (ypoint-(R-30) *math.cos ((HOUR+MINUTE/60+SECOND/60/60) * (2*MATH.PI/12)); G.setcolor (color.red); G.drawline ( Xpoint,ypoint,xhour,yhour);} public static void Main (string[] args) {New Clockdemo ();}} 

　　

Java Implementation Clock