Factorial Program in Java

Program:

import java.util.Scanner;

public class FactorialProgram {

    

 public static int factorialValue(int n){

     int fact = 1;

      for ( int i= 1 ; i <= n ; i++ ){

           

         fact = fact*i;

//condition is failed ,when i value is 4.Otherwise loop reapeted

      }

      return fact;

 }// method 

   public static void main(String args[])

   {

       Scanner in = new Scanner(System.in);

      System.out.println("Enter an only +ve Integer Number : ");

        int n = in.nextInt();

       int result=FactorialProgram.factorialValue(n);

       System.out.println("Factorial of "+n+" is = "+result);

   }//main

}// class

output:

Enter an only +ve Integer Number : 

4

Factorial of 4 is = 24