Addition of Two Numbers in C# using Class and Methods

Addition of two numbers in C# using class.

In this article, you will learn how to make an addition of two numbers in C# using class.

Example

You should have knowledge of the following topics in C# programming to understand this program:

• C# Oops Concepts
• C# System Library
• C# Methods

Source Code

// Addition of Two Numbers in C# using Class and Methods
using System;

public class W3CW {
    // To make the sum of two numbers
    public int sum(int x, int y) {
        return x + y;
    }
    
    // @It's the driver function
    static public void Main (string[] args) {
        Console.WriteLine("Enter two integer values::");
        int p = Convert.ToInt32(Console.ReadLine());
        int q = Convert.ToInt32(Console.ReadLine());
        
        W3CW Obj = new W3CW();
        int sum = Obj.sum(p, q);
        
        // It will print the final output
        Console.Write("\nResult:: " + p + " + " + q + " = " + sum);
    }
}

Run

Output

Explanation

In the above program, we have taken two inputs 10 and 20 from the user via the system console. Then we applied the arithmetic operation on these values after that It will return the value 30 the output of the program.

Addition of Two Numbers in C# using Function

// Addition of Two Numbers in C# using Function
using System;

public class W3CW {
    // To make the sum of two numbers
    public static int Sum(int x, int y) {
        return x + y;
    }
    
    // @It's the driver function
    static public void Main (string[] args) {
        Console.WriteLine("Enter two integer values::");
        int p = Convert.ToInt32(Console.ReadLine());
        int q = Convert.ToInt32(Console.ReadLine());
        
        // It will print the final output
        Console.Write("\nResult:: " + p + " + " + q + " = " + Sum(p, q));
    }
}

Run

Addition of Two Numbers in C# using Generics

// Addition of Two Numbers in C# using Generics
using System;

public class W3CW {
    // To make the sum of two numbers <Generic method>
    public int Sum<T>(T x, T y) {
        dynamic a=x;
        dynamic b=y;
        return a+b;
    }
    
    // @It's the driver function
    static public void Main (string[] args) {
        Console.WriteLine("Enter two integer values::");
        int p = Convert.ToInt32(Console.ReadLine());
        int q = Convert.ToInt32(Console.ReadLine());
        
        W3CW Obj = new W3CW();
        int sum = Obj.Sum<int>(p, q);
        
        // It will print the final output
        Console.Write("\nResult:: " + p + " + " + q + " = " + sum);
    }
}

Run