How To Sum Two Number In C# Using Console

How To Sum Two Number

In C# Using Console

In C# we can sum two numbers by taking input numbers from the users in terminal. In this blog I am going to discuss about how to take users input and sum operation.

In C# there are five operators available such as "+" for addition ,"-" for substraction ,"*" for multiplication ,"/" for division and "%" for modules ( reminder ). For addition we are going to use "+" operator.

We have tow different methods to add numbers in C# are

Pre-defined Inputs
Taking user input

Pre-defined Inputs Method ?

In this method the user is already defined the values of two numbers. Follow the Code .

1.Taking input values :-

In this part we have to define variables .

For a=23, and b=35,

We are going to define variables by names a and b.

Code:-

 using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
 /


 namespace HACKINGSTAN
 {
   public class Program
   {
     public static void Main(string[] args)
     {
       //Code For Sum
       int a=23;
       int b=35;
       
     }
   }
 }

2.Printing Elements (Answer):-

After defining variables then we have to print the the elements . To print we use "Console.WriteLine(a+b);" or "Console.WriteLine("The Sum of a+b is: {0} ", a+b); " .

Code:-

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
 

 namespace HACKINGSTAN
 {
   public class Program
   {
     public static void Main(string[] args)
     {
       //Code For Sum
       int a=23;
       int b=35;
       
   Console.WriteLine(a+b);
   Console.ReadLine();
       
     }
   }
 }

Output :-

Output is shown on the picture .

Taking user input :-

We can ask input or values of a and b from the user by using this method. To use this method follow the steps that written below .

1. Ask The User For Input :

We can ask the user to enter the values of a and b by using "Console.WriteLine("Enter The First Number: ");" .

2. Storing input in variable :

After getting inputs we have to store the input in a variable . For numbers we use int datatype of variable. If a= first number and b=second number then we have to declare the first number as " int a; " .

3. Change The Variable type to Integers :

After storing the input we have to change the type of the input, because every input of variable is stored in String(Character) . To change String Value To Inter Use

" a=Convert.ToInt32(Console.ReadLine()); ".

For second number b repeat the same process from 1-3 method.

4. Printing The Result In Console :

We can print the results by using two methods. Direct Printing method by using "Console.WriteLine(a+b);" . Second Method Is based On parentheses of 0 and 1 as "Console.WriteLine("The Value Of a+b is : {0},a+b);" .

Output :-

Output is shown in the below image .

Code For This Method :-

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
 


 namespace HACKINGSTAN
 {
   public class Program
   {
     public static void Main(string[] args)
     {
       //Code For Sum
      Console.WriteLine("Enter The First Number");
       int a;
       a=Convert.ToInt32(Console.ReadLine());
      Console.WriteLine("Enter The second Number");
       int b;
       b=Convert.ToInt32(Console.ReadLine());
      Console.WriteLine("The Sum Of a and b : {0}", a+b);
      Console.ReadLine();
       
     }
   }
 }

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How To Sum Two Number In C# Using Console

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