(Coderbyte) First Factorial - Solução

Have the function FirstFactorial(num) take the num parameter being passed and return the factorial of it (ie. if num = 4, return (4 * 3 * 2 * 1)). For the test cases, the range will be between 1 and 18.

Solução:

import java.util.*;
import java.io.*;

class Function { 
  int FirstFactorial(int num) {
    int tmp = 1;
    for (int i = 1; i <= num; i++) {
           tmp *= i;
    }
   
    return tmp;
   
  }
 
  public static void main (String[] args) { 
    // keep this function call here    
    Scanner  s = new Scanner(System.in);
    Function c = new Function();
    System.out.print(c.FirstFactorial(s.nextLine()));
  }  
 
}