Write a Java program to find sum of all-natural numbers between 1 to n

Find sum of all natural numbers between 1 to n

Sample Output

Find sum of all natural numbers between 1 to n.

Enter a number: 4
Natural numbers are...
1
2
3
4
Sum: 10

Java-Source Code

//package loopinjava;
 
import java.util.Scanner;
 
public class Main {
 
    public static void main(String[] args) {
 
        int n, number, sum = 0;
 
        Scanner input = new Scanner(System.in);
 
        System.out.println("Find sum of all natural numbers between 1 to n.\n");
 
        System.out.print("Enter a number: ");
        number = input.nextInt();
 
        System.out.println("Natural numbers are...");
 
        for (n = 1; n <= number; n++) {
            sum += n; // Or, sum = sum + n;
            System.out.println(n);
            
        }
        System.out.println("Sum: " + sum);
    }
}

Sample Output

Find sum of all natural numbers between 1 to n.

Enter a number: 6
Natural numbers are...
1
2
3
4
5
6
Sum: 21