Java Tips - 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()) + 25, 30);

    }



  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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