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Java Program to Find the Sum of Natural Numbers

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It is the Basic Java Program to find the sum of N natural numbers. The program below uses the While loop, if you want to learn about the while loop click below.

Example: If you want to find the sum of 5 natural numbers, the process will be executed in this manner:
1 + 2 + 3 + 4 + 5
The result will be: 15

Java Program to Find the Sum of Natural Numbers using While Loop

//Sum of Natural numbers in java
  
public class SumNaturalNumbers 
{
  public static void main(String[] args) 
   {

   int n = 100, count = 1, sum = 0;

   while(count <= n)
   {
       sum = sum + count;
       count++;
   }

   System.out.println("Sum: "+sum);
   }
}

Output:

Sum: 5050

In the above program, n is already defined in the program but if you wish to take the input of n from the user, just use the scanner class.

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