feat: Calculate sum of first n natural numbers using formula

🧠 Logic:
- Read user input `n` using `Scanner`.
- Apply the formula `sum = n * (n + 1) / 2` for the sum of first `n` natural numbers.
- Display the result with a descriptive message.

Signed-off-by: Somesh diwan <[email protected]>

Author: Someshdiwan

Section9ArrayAB/Array 2.0/src/SumOfTheNumbers.java

@@ -1,65 +1,14 @@
-// Program to Print the Sum of First 10 Natural Numbers Using while Loop
-
-//public class SumOfTheNumbers {
-//    public static void main(String[] args) {
-//        int i = 1;  // Initialize the counter
-//        int sum = 0;  // Variable to store the sum
-//
-//        while (i <= 10) {
-//            sum += i;  // Add the current number to the sum
-//            i++;  // Increment the counter
-//        }
-//
-//        System.out.println("Sum of first 10 natural numbers: " + sum);
-//    }
-//}
-
-
-// Input from the user
-
 import java.util.Scanner;
-//public class SumOfTheNumbers
-//{
-//    public static void main(String[] args)
-//    {
-//        Scanner scanner = new Scanner(System.in);
-
-//         Input from the user
-//        System.out.print("Enter the value of n: ");
-//        int n = scanner.nextInt();
-
-//         Initialize variables
-//        int sum = 0;
-//        int counter = 1;
-
-//         While loop to calculate the sum
-//        while (counter <= n)
-//        {
-//            sum += counter;
-//            counter++;
-//        }
-
-//         Display the result
-//        System.out.println("The sum of the first " + n + " natural numbers is: " + sum);
-//        scanner.close();
-//    }
-//}
-
 
-public class SumOfTheNumbers
-{
-    public static void main(String[] args)
-    {
+public class SumOfTheNumbers {
+    public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
 
-//         Input from the user
         System.out.print("Enter the value of n: ");
         int n = scanner.nextInt();
 
-//         Calculate sum using the formula
         int sum = n * (n + 1) / 2;
 
-//         Display the result
         System.out.println("The sum of the first " + n + " natural numbers is: " + sum);
 
         scanner.close();