class MyOwnVeryObject {         // A silly little object

    int k;
    
    public String toString ()
    {
        return ("k=" + k);
    }

}


public class TestObject {

    public static void main (String[] argv)
    {
        // Create an instance of the class defined above and set a value for one of the members.
        MyOwnObject x = new MyOwnObject ();
        x.k = 5;
        
        // Invoke the toString() method:
        System.out.println (x);
        
        // Since MyOwnObject is also an Object, an Object variable can point to it.
        Object obj = x;

        // Invoke the toString() method: this calls the toString() method in x.
        System.out.println (obj);

        // Cast down from an Object variable into a MyOwnObject variable.
        MyOwnObject y = (MyOwnObject) obj;
        print (y);

        // Casting can occur in a method call too.
        print (x);
    }


    static void print (Object obj)
    {
        System.out.println (obj);
    }
    
}