SOURCE CODE

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

public class PrintTest extends Applet {
	private TextArea output;

	public void init()
	{
		output = new TextArea (28, 48);
		add (output);
	}

	public void start ()
	{
		PrintThread thread1, thread2, thread3, thread4;
		thread1 = new PrintThread ( "1" , output);
		thread2 = new PrintThread ( "2" , output);
		thread3 = new PrintThread ( "3" , output);
		thread4 = new PrintThread ( "4" , output);

		thread1.start();
		thread2.start();
		thread3.start();
		thread4.start();
	}
}
	class PrintThread extends Thread
	{
		int sleepTime;
		private TextArea out;

		public PrintThread (String id, TextArea output)
		// constructor assigns name to thread by calling Thread constructor
		{
			super (id);
			out = output;
		// sleep between 0 and 5 seconds
			sleepTime = (int) (Math.random() * 5000);

			output.appendText ("\n Name: " + getName() + ";   sleep: " + sleepTime );
		}

		// execute the thread
		public void run()
		{
		// put thread to sleep for a random interval
			try
			{	sleep( sleepTime );	}
			catch ( InterruptedException exception )
			{	System.err.println ("Exception: " + exception.toString() );	}
		// print thread name
			out.appendText ("\n Thread " + getName() );
		}
	}