public Counter( String threadName )
    {
        super( threadName );
        System.out.println( this );
        start();
    }

    public void run()
    {
        try
        {
            while ( currentValue < 5 )
            {
                System.out.println( getName() + ": " + (currentValue++) );
                Thread.sleep( 500 );
            }
        }
        catch ( InterruptedException ignore )  { }
        System.out.println( "Exit from " + getName() + "." );
    }

    public int getValue()  {  return currentValue;  }
}

public class AnotherClient
{
    public static void main( String args[] )
    {
        Counter cA = new Counter( "Counter A" );
        Counter cB = new Counter( "Counter B" );

        try
        {
            System.out.println( "Wait for the child threads to finish." );
            cA.join();
            cB.join();
            if ( !cA.isAlive() ) // prove to reader that cA is not alive
            {
                System.out.println( "Counter A not alive." );
            }
            if ( !cB.isAlive() )
            {
                System.out.println("Counter B not alive.");
            }
        }
        catch ( InterruptedException e )  { }
        System.out.println( "Exit from Main Thread." );
    }
}