Challenge 2: Implement an Interface
Can you implement an interface in your class? A solution is placed in the "solution" section to help you, but we would suggest you try to solve it on your own first.
We'll cover the following...
We'll cover the following...
Problem Statement
You are given an interface Addition which contains a method signature int add(int num1, int num2). You need to write a class called Calculator which implements the Addition interface.
The add(int, int) method takes two integers and returns their sum.
Input
Calls the add(int, int) method by passing num1 and num2.
Output
Returns the addition of num1 and num2.
Sample Input
Calculator cal = new Calculator();
cal.add(10, 20);
Sample Output
30