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+import java.util.Scanner;%0A%0Apublic class Easy_FirstFactorial %7B%0A%0A%09public static int function(int input)%7B%0A%09%09int result = 1;%0A%09%09for(int x = 1; x != (input + 1); ++x)%7B%0A%09%09%09result *= x;%0A%09%09%7D%0A%09%09return result;%0A%09%7D%0A%09%0A%09public static void main(String%5B%5D args) %7B%0A%09%09System.out.println(function(new Scanner(System.in).nextInt()));%0A%09%7D%0A%7D%0A

Create easy_FirstFactorial.java