Java Program to Find Factorial of a Number

/** * * @program To print Factorial of a number * Example: 5! = 1*2*3*4*5 */ import java.io.*; public class Factorial { public static void main(String args[]) throws IOException { BufferedReader obj = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter number"); int num = Integer.parseInt(obj.readLine()); long factorial = 1; for(int i = 2 ; i <= num ; i++) { factorial = factorial*i; } System.out.println("Factorial of "+ num +" = "+ factorial); } }

Sample Input/Output

Enter number
8
Factorial of 8 = 40320

Factorial Program in Java