Find out factorial of Number.

package com.JavaInterview.Programs;

import java.util.*;

/**

 * Find Out Factorial of a number

 * 

 * @author:http://javainterviewprograms.blogspot.in/

 * 

 */

public class Factorial {

 public void findFactorial(int n) {

  int fact = 1;

  if (n < 0) {

   System.out.println("The Number should be non-negative");

  } else {

   for (int i = 1; i <= n; i++) {

    fact = fact * i;

   }

  }

  System.out.println("factorial Of Number  " + n + " is : " + fact);

 }

 public static void main(String[] args) {

  Scanner input = new Scanner(System.in);

  System.out.println("Please enter the number :");

  int num = input.nextInt();

  Factorial f = new Factorial();

  f.findFactorial(num);

 }

}

Output :

Please enter the number :

6

factorial Of Number  6 is : 720