- Sum Of Natural Numbers DoWhile Loop
import java.util.Scanner;
public class Demo {
public static void main(String[] args) {
int x=1,n,sum=0;
Scanner s=new Scanner(System.in);
System.out.println("Enter n value");
n=s.nextInt();
do
{
sum=sum+x;
x++;
}while(x<=n);
System.out.println(sum);
}
}
output:
Enter n value
5
15
import java.util.Scanner;
public class Demo {
public static void main(String[] args) {
int x=1,n,sum=0;
Scanner s=new Scanner(System.in);
System.out.println("Enter n value");
n=s.nextInt();
do
{
sum=sum+x;
x++;
}while(x<=n);
System.out.println(sum);
}
}
output:
Enter n value
5
15