This is the basic program which gives the return value from the caller.
We can also create subtraction, division, multiplication...etc program, respectively by using the following codes.
NOTE:- Student must also try the other subtraction, division, multiplication to grab control and also to be more clear about the "Return Statement" program.
ENJOY CODING!!!
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Return_statement
{
    class PostSlush
    {
        public int add(int a, int b)
        {
            // returns the add of a and b
            return a + b;
        }
        static void Main(string[] args)
        {
            PostSlush p = new PostSlush();
            int result;
            // calling the function add that will return 10 to the result variable.
            result = p.add(1, 9);
            Console.WriteLine(result);
            Console.ReadLine();
        }
    }
}
Output :

