MultiThreading | Simple

import java.util.Scanner;


/**
*A Simple Java program to explain basic MultiThreading.
*@author Steve Robinson
*@see footyntech.wordpress.com
*/


class ThreadTest implements Runnable
{
    public int buffer=0;
    public void run()
    {
        try
        {
            for(int i=0;i<50;i++)
            {
                buffer+=i;
                Thread.sleep(400);
            }
        }
        catch(InterruptedException e)
        {
            e.printStackTrace();
        }
        System.out.println("Child Thread Ended");
    }
}

class MultiThreading
{
    public static void main(String arg[])
    {
        ThreadTest temp=new ThreadTest();
        Runnable r=temp;

        Thread thread=new Thread(r);
        thread.start();

        String in;
        Scanner input=new Scanner(System.in);

        System.out.println("Press \"p\" to print current value and \"q\" to quit.. ");
        while(!((in=input.nextLine()).equals("q")))
        {
            if(in.equals("p"))
            {
                    System.out.println("Current Value: " + temp.buffer);
            }
        }
        System.out.println("Stopping Child Thread....\nExiting....");

        //Deprecated method. But completely safe for such small programs. Please ignore warnings...
        thread.stop();

    }
}