Simple Object Method 2 (Kotlin)
Geoffrey Challen // 2021.9.0
Create a public class called Simple.
Simple should store a single int value in a private field and provide a public setValue method
that sets the stored int to the passed value.
You should also implement a public constructor allowing the value to be set when the class is created.
It should also provide a public method called inverse which returns the saved value multiplied by -1.