Program to calculate Factorial of a number in Java

This java program finds factorial of a number. Entered number is checked first if its negative then an error message is printed.

import java.util.Scanner;

class Factorial
   public static void main(String args[])
      int n, c, fact = 1;

      System.out.println("Enter an integer to calculate it's factorial");
      Scanner in = new Scanner(;

      n = in.nextInt();

      if ( n < 0 )
         System.out.println("Number should be non-negative.");
         for ( c = 1 ; c <= n ; c++ )
            fact = fact*c;

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

Factorial of a number in Java

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