Practical-05

Problem Statement

Write a program using delegate in which addition and subtraction of two Integer values is possible.

Solution

To solve this problem, we can use C# and demonstrate the usage of delegates to perform addition and subtraction of two integer values.

1. Create a new C# Console Application project in Visual Studio.
2. In the Solution Explorer, right-click on the project name and select "Add" > "Class".
3. Name the class "DelegateDemo.cs".
4. Open the "DelegateDemo.cs" file.
5. Add the following code to demonstrate the usage of delegates for addition and subtraction:

using System;

namespace DelegateDemo
{
    public delegate int MathOperation(int a, int b);

    class Program
    {
        static int Add(int a, int b)
        {
            return a + b;
        }

        static int Subtract(int a, int b)
        {
            return a - b;
        }

        static void Main(string[] args)
        {
            MathOperation addDelegate = new MathOperation(Add);
            MathOperation subtractDelegate = new MathOperation(Subtract);

            int num1 = 10;
            int num2 = 5;

            int sum = addDelegate(num1, num2);
            int difference = subtractDelegate(num1, num2);

            Console.WriteLine("Sum: " + sum);
            Console.WriteLine("Difference: " + difference);
        }
    }
}

6. Save the file.

7. Build and run the project.

8. The console application will display the following output:

Sum: 15
Difference: 5

This completes the solution to the problem.

Summary

In this practical, we learned how to use delegates in C# to perform addition and subtraction of two integer values.