Factorial Number in Java

A simple program that will ask the user to give a number and then our program will compute the factorial value of the given number using Java programming language.  

I am currently accepting programming and web development work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental is (034) 4335675.

Sample Program Output

Program Listing

factorial.java

import java.util.Scanner;

// factorial.java

// Written By Mr. Jake R. Pomperada, MAED-IT

// February 2, 2018   4:24 PM   Friday

// Bacolod City, Negros Occidental Republic of the Philippines

// jakerpomperada@yahoo.com and jakerpomperada@gmail.com

class factorial {

public static void main(String[] args)

      {

      int num1=0, c=0, fact = 1;

        Scanner s = new Scanner(System.in);

        System.out.println();

        System.out.println("=== Factorial Number in Java === ");

        System.out.println();

         System.out.print("Give a Number : ");

         num1 = s.nextInt();

if (num1 < 0) {

     System.out.println("\n");

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

}

      else

      {

         for (c = 1; c <= num1; c++)

            fact = fact*c;

   }

         System.out.println("\n");

         System.out.println("The factorial value of "+num1+" is = "+fact);

System.out.println("\n");

System.out.println("\t End of Program");

         System.out.println();

}

}