# Program for Sum of N natural numbers using Java

## Sum of N natural numbers using java :

In this article we will perform addition on first n natural numbers, where n is a number upto which we have to perform addition. So we create a java program to print the sum of n natural numbers.

For better understanding let’s suppose the value of n is 5 then,

Sum of first 5 natural numbers will be (1+2+3+4+5) = 15.

So we create a java program to calculate sum of first n natural numbers. ### Working :

Step 1 : Ask the user to enter a  number which will denote the limit.

Step 2 : Declare a variable to store the addition and initialize it with 0.

Step 3 : Use a loop to perform iterations for adding natural numbers from 1 till the limit entered by the user.

Step 4 : Use a statement for addition purpose.

Step 5 : Print the result.

### Code in Java :

`//Java program to print the sum of n natural numbersimport java.util.Scanner;public class sum_of_n_natural_numbers{		public static void main(String[] args)	{		//scanner class declaration		Scanner sc = new Scanner(System.in);		//input from user		System.out.print("Enter a number : ");						int n = sc.nextInt();		//declare a variable to store sum		int sum=0;		//loop to add n natural numbers		for(int i = 1 ; i <= n ; i++)		sum=sum+i;		//display the sum		System.out.print("Sum of n natural numbers is "+sum);		//closing scanner class(not compulsory, but good practice)		sc.close();														}}`

### Output :

`Enter a number : 15Sum of n natural numbers is 120Enter a number : 5Sum of n natural numbers is 15` 