Factorial

Find factorial of a number using a loop.

JavaBeginner

Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter n: ");
        int n = sc.nextInt();

        long fact = 1;
        for (int i = 1; i <= n; i++) {
            fact *= i;
        }

        System.out.println("Factorial = " + fact);
        sc.close();
    }
}

Output

Enter n: 5
Factorial = 120

We multiply numbers from 1 to n to compute n!.

Print Odd Numbers

Reverse a Number