C#: Display n natural numbers and their sum

C# Sharp For Loop: Exercise-3 with Solution

Write a C# Sharp program that displays the sum of n natural numbers.

Visual Presentation:

C# Sharp Exercises: Display n natural numbers and their sum

Sample Solution:

C# Sharp Code:

using System;  // Importing necessary namespace

public class Exercise3  // Declaration of the Exercise3 class
    public static void Main()  // Main method, entry point of the program
        int i, n, sum = 0;  // Declaration of variables 'i' for iteration, 'n' for storing user input, and 'sum' to store the total sum

        Console.Write("\n\n");  // Displaying new lines
        Console.Write("Display n terms of natural numbers and their sum:\n");  // Displaying the purpose of the program
        Console.Write("----------------------------------------------");  // Displaying a separator
        Console.Write("Input Value of terms : ");  // Prompting the user to input the number of terms
        n = Convert.ToInt32(Console.ReadLine());  // Reading the number of terms entered by the user

        Console.Write("\nThe first {0} natural numbers are:\n", n);  // Displaying the header for the natural numbers

        for (i = 1; i <= n; i++)  // Loop to display and calculate the sum of the first 'n' natural numbers
            Console.Write("{0} ", i);  // Printing each natural number
            sum += i;  // Adding each number to the sum

        Console.Write("\nThe Sum of Natural Numbers up to {0} terms : {1} \n", n, sum);  // Displaying the total sum of the first 'n' natural numbers

Sample Output:

Display n terms of natural number and their sum:                                                              
Input Value of terms : 5                                                                                      
The first 5 natural number are :                                                                              
1 2 3 4 5                                                                                                     
The Sum of Natural Number upto 5 terms : 15   


Flowchart: Display n natural numbers and their sum

C# Sharp Code Editor:

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