May 27th, 2009 
Jaffar Threads:
Thread is a line of execution.In a single-threaded system there is only one execution line (i.e) only one part of program is in the process of execution at any one time
To create a new thread:
Thread mythread = new thread(this);
this referes the current applet & mythread is a variable
Example:
import java.awt.*; import java.applet.Applet; public class MovingBall extends Applet implements runnable { Thread mythread=null; int position=0; public void start() { mythread=new Thread(this); mythread.start(); } public void run() { while(true) { for(position=0;position) { repaint(); try {mythread.sleep(100); } catch(InterruptedException e) { } } } } public void stop() { mythread.stop(); mythread = null; } public void paint(Graphics g) { g.setColor(Color.gray); g.fillOval(position,50,30,30); g.setColor(Color.black); g.fillOval(position+6,58,5,5); g.fillOval(position+20,58,5,5); g.drawLine(position+15,58, position+15,68); g.drawLine(position+12,68, position+15,68); g.drawLine(position,45,30,30,-50,-70); } }
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