Course of Raku / Objects, I/O, and exceptions / Classes and objects / Class methods / Exercises
A formula on the class
Problem
A class method can take parameters, just like any other method.
Define a class Geometry with a class method
circle-area that takes a radius and returns the area of a
circle (use π or pi), rounded an integer. The
formula belongs to the class as a whole — there is no individual circle
object involved. Call the method on the class with a radius of
10 and print the result.
Example
The program prints:
314