java program to find the sum of natural number N given by user(1 to N).

import java.util.*;

public class HelloWorld {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
int sum=0;
for(int i=1;i<=n;i++)
{
sum=sum+i;
}
System.out.println(sum);
}
}