import java.awt.*;
import java.applet.*;

public class AnalogUhr extends Applet {
   private static final long serialVersionUID = 1L;
   Image      img;
   Graphics2D grf;
   Point      M;

   public void init() {
      setBackground (new Color(255,255,255));
      img = createImage (this.getWidth(), this.getHeight());
      grf = (Graphics2D) img.getGraphics();

      // Mittelpunkt des Ziffernblattes
      M = new Point (this.getWidth()/2, this.getHeight()/2);
   }

   public void paint(Graphics g) {
      actualTime time;
      int        i;
      double     x, y;

      grf.clearRect(0, 0, 2*M.x, 2*M.y);

      // Aktualisieren der Uhrzeit
      time = new actualTime();
      int hrs = time.getHrs();
      int min = time.getMin();
      int sec = time.getSec();

      // Minutenzeiger
      drawHand(grf, 50, 50, 50, 0.75, 6*min - 90);

      // Stundenzeiger
      drawHand(grf, 50, 50, 50, 0.5, 30*hrs - 90 + min/2);

      // Stundenmarkierungen
      grf.setColor (new Color(0, 0, 128));
      for (i=0; i<12; i++) {
         x = M.x*xFactor(30*i); y = M.y*yFactor(30*i);
         grf.drawLine (
            M.x + (int)(0.70*x), M.y + (int)(0.70*y),
            M.x + (int)(0.85*x), M.y + (int)(0.85*y));
      }

      // Minutenmarkierungen
      grf.setColor (new Color(0, 0, 128));
      for (i=0; i<60; i++) {
         x = M.x*xFactor(6*i); y = M.y*yFactor(6*i);
         if (i%5 != 0) {
            grf.drawLine(
            M.x + (int)(0.80*x), M.y + (int)(0.80*y),
            M.x + (int)(0.85*x), M.y + (int)(0.85*y));
         }
      }

      // Sekundenzeiger
      drawHand(grf, 200, 0, 0, 0.78, 6*sec - 90);

      g.drawImage (img, 0, 0, this);
      try {Thread.sleep(10);} catch (InterruptedException e) {}
      this.repaint();
   }

   public void drawHand (Graphics2D g2D,
                         int R, int G, int B,
                         double k, double angle) {
      g2D.setColor(new Color(R,G,B));
      g2D.drawLine(M.x, M.y, xE(M.x, k, angle), yE(M.y, k, angle));
   }

   public int xE (int xm, double k, double angle) {
      return xm + (int)(k*xm*xFactor(angle));
   }

   public int yE (int ym, double k, double angle) {
      return ym + (int)(k*ym*yFactor(angle));
   }

   public double xFactor (double angle) {
      return Math.cos(Math.toRadians(angle));
   }

   public double yFactor (double angle) {
      return Math.sin(Math.toRadians(angle));
   }

   public void update (Graphics g) {
      paint(g);
   }
}

import java.util.Calendar;
import java.util.GregorianCalendar;

public class actualTime {
   Calendar cdr = new GregorianCalendar();
   int hrs = cdr.get(Calendar.HOUR_OF_DAY);
   int min = cdr.get(Calendar.MINUTE);
   int sec = cdr.get(Calendar.SECOND);

   public int getHrs() {
      return hrs;
   }

   public int getMin() {
      return min;
   }

   public int getSec() {
      return sec;
   }
}