// File: Square.java // Copy: Copyright (c) 1998, 2004 David Green // Vers: 1.1.0 20040909 dgg -- convert names / style // Vers: 1.0.11 1998/10/16 dgg -- original coding public class Square extends Rectangle { // sides of square (uses the rectangle data) // constructors public Square() { super(1, 1); System.out.println("in Square()"); } public Square(int side) { super( side, side); System.out.println("in Square( int )"); } // use rectangle's area() method // override the printArea() method public void printArea() { System.out.println("Square method, area = " + area() ); } }