Chapter 10 - Exceptions - Challenges

Circle Class

Create a basic class Circle that satisfies the following UML diagram:

####################################
- radius
####################################
+ Circle()
+ Circle(double radius)

+ get_radius(): double
+ set_radius(radius: double)

+ area(): double
+ circumference(): double
####################################

Make the methods area() and circumference() calculate the area and circumference of the circle and return the result.

Create a small demo app that demonstrates the Circle class. Request a radius from the user via the terminal.

Next create a class NegativeRadiusException and throw an instance in the method set_radius() if the argument of the method is negative. Refactor the main function of the application to try and catch the exception.