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.
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 numbers
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
//loop to add n natural numbers
for(int i = 1 ; i <= n ; i++)
//display the sum
System.out.print("Sum of n natural numbers is "+sum);
//closing scanner class(not compulsory, but good practice)
Enter a number : 15
Sum of n natural numbers is 120
Enter a number : 5
Sum of n natural numbers is 15