OCamal Language Assignment.

Write a Circle class that has the following fields:

radius: a float

PI: a final float initialized with the value 3.14159

The class should have the following methods:

setRadius : A mutator method for radius field

getRadius : An accessor method for the radius field

getArea : Returns the area of the circle, which is calculated as area = PI * radius * radius

getDiameter : Returns the diameter of he 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 will ask the user for a radius and then will display the area, diameter, and circumference.

P.S. This is OCaml programing Language.