COSC6490A

/**
 * An Assignment thread continuously assigns its private value to
 * a shared value.
 */
public class Assignment extends Thread
{
    /** The value shared by all Assignment objects */
    public static long sharedValue;
 
    /** The private value of this Assignment object */
    private long privateValue;
 
    /**
     * Creates an Assignment object with the given private value.
     *
     * @param privateValue the private value of the created Assignment object.
     */
    public Assignment(long privateValue)
    {
        this.privateValue = privateValue;
    }
 
    /**
     * Continuously assigns the private value of this Assignment object
     * to the shared value of all Assignment objects.
     */
    public void run()
    {
        while (true)
        {
            Assignment.sharedValue = this.privateValue;
        }
    }
}

/**
 * A Print thread continuously prints the value of the value shared
 * by all Assignment objects.
 */
public class Print extends Thread
{
    /**
     * Continuously prints the value of the value shared
     * by all Assignment objects.
     */
    public void run()
    {
        while (true)
        {
            System.out.println(Assignment.sharedValue);
        }
    }
}

public class Client
{
    public static void main(String[] args)
    {
        Assignment zero = new Assignment(0);
        Assignment max = new Assignment(Long.MAX_VALUE);
        Print print = new Print();
        zero.start();
        max.start();
        print.start();
    }
}