package java_oops; public class RectangleCalci { public static void main(String args[]){ Rectangle rectangle1 = new Rectangle(10.5f, 5.5f); rectangle1.area(); rectangle1.perimeter(); rectangle1.setArea(1000.01f); System.out.println(rectangle1.getArea() + " " + rectangle1.getPerimeter()); Rectangle rectangle2 = new Rectangle(); System.out.println(rectangle2.area()); } }