using System;

public class Calculator  

{  

    //addition of two numbers  

    public int Add(int num1, int num2)  

    {  

        return num1 + num2;  

    }  

    // Multiplying two intergers  

    public int Multiply(int num1, int num2)  

    {  

        return num1 * num2;  

    }  

    // Subtraction of two numbers  

    public int Subtract(int num1, int num2)  

    {  

            if (num1 > num2)  

            {  

                return num1 - num2;  

            }  

            return num2 - num1;  

        }  

}  

   class SubClass  // subclass = newclass

{

static void Main(string[] args)

{

Calculator count = new Calculator(); // count = object

​

    int result = count.Add(88, 1000);  // for addition

    Console.WriteLine("The addition of 88 + 1000 is: " + result);

​

​

    result = count.Subtract(200, 310);   // for subtraction

    Console.WriteLine("The subtraction of 200 - 310 is: " + result);

​

    result = count.Multiply(25, 25);  // for multiplication

    Console.WriteLine("The multiplication of 25 * 25 is: " + result);

}

}

​

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