The Rectangle class is provided in the template. First run the program to see what it does. You will need two numbers for input. (1) Add a calculatePerimeter() method to the class (Rectangle. java). calculatePerimeter() has no parameters and returns the perimeter of the rectangle.
(2) In main() in RectangleDemo. java, call the new method and display the results:
Ex:
Enter a length: 7
Enter a width: 5
The area of a 7 by 5 rectangle is 35
The perimeter is 24