/* * @topic T02385 11/29/2012 Polymorphism * @brief class Circle implements Shape */ package interfacedemo; public class Circle implements Shape { int radius; //constructors public Circle(int radius) { this.radius = radius; } //operations public double getArea() { return Math.PI * radius * radius; } public void draw() { System.out.println("Cirlcle with area " + getArea()); } }//class Circle