Chapter 3, Problem 10E

Program Plan Intro

Print area of the circle for the given radius

Program plan:

• Create a class “AreaCircle”,
  • Define the method “area()” that accepts the radius of the circle as an argument,
    • Return the area of the circle.
  • Define the method “main()”,
    • Print the value returned from “area()” when passing the argument “2.0”.