Write a class declaration for a class named circle, which has the data member, radius, a double, and member functions setRadius and getArea.Write the code for these as inline functions.
Answers
Explanation:
Write a Circle class that has the following member variables: - radius: a double - pi: a double initialized with the value 3.14159 The class should have the following member functions: - Default Constructor. A default constructor that sets radius to 0.0. - Constructor. Accepts the radius of the circle as an argument. - setRadius. A mutator function for the radius variable. - getRadius. An accessor function for the radius variable. - getArea. Returns the area of the circle, which is calculated as area = pi * radius * radius - getDiameter. Returns the diameter of the circle, which is calculated as diameter = radius * 2 - getCircumference. Returns the circumference of the circle, which is calculated as - circumference = 2 * pi * radius Write a program that demonstrates the Circle class by asking the user for the circle’s radius, creating a Circle object, and then reporting the circle’s area, diameter, and circumference.