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On-screen Clock Applet E-mail
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The following code snippet shows how to implement an on-screen clock applet.

import java.applet.*;
import java.awt.*;
import java.util.*;
import java.text.*;

public class MyClock extends Applet {
  MyPanel mp;
  public void init() {
    mp = new MyPanel(getParameter("format"));
    add(mp);
    }
  }

class MyPanel extends Panel {
  MyClockThread mct;
  Color b, f;
  SimpleDateFormat formatter;
  String previousDateText = "";
  String dateText;

  MyPanel(String df) {
    super();
    formatter = new SimpleDateFormat(df);
    validate();
    setBackground(new Color(0).black);
    setForeground(new Color(0).yellow);
    b = this.getBackground();
    f = this.getForeground();
    mct = new MyClockThread(this);
    mct.start();
    }

  public Dimension getPreferredSize() {
    return new Dimension
     (this.getFontMetrics(this.getFont()).stringWidth(getNow()) 2530);
    }

  public void paint(Graphics g) {
    if (g != null) {
       g.setColor(b);
       g.drawString(previousDateText,10,15);
       g.setColor(f);
       dateText = get

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