class RectangleTest{ public static void main(String[] args) { //create a object named rect1 Rectangle rect1 = new Rectangle(10, 10); //set the width to be 20, length to be 30 by calling setLength and setWidth System.out.println("The rect1's length is " + rect1.getLength() + ", the rect1's with is " + rect1.getWidth()); rect1.setLength(30); rect1.setWidth(20); //set the width to be 20, length to be 30 by calling setLength and setWidth System.out.println("The rect1's length is " + rect1.getLength() + ", the rect1's with is " + rect1.getWidth()); } }