public class Point
{
    private int x;
    private int y;

    public Point()
    {
        x = 0;
        y = 0;
    }

    public Point(int a, int b)
    {
        x = a;
        y = b;
    }

    // Other Methods not shown
}

public class NamedPoint extends point
{
	private String name; // name of point

	// Constructors go here

	// Other methods not shown

}

I.	 public NamedPoint()
	 {
	   name = "";
	 }

II.	 public NamedPoint(int d1, int d2, String pointName)
	 {
	   x = d1;
	   y = d2;
	   name = pointName;
	 }

III. public NamedPoint(int d1, int d2, String pointName)
	 {
	   super(d1, d2);
	   name = pointName;
	 }