/**
 * Title:        Chapter 4, "Methods"
 * Description:  Examples for Chapter 4
 * Copyright:    Copyright (c) 2000
 * Company:      Armstrong Atlantic State University
 * @author Y. Daniel Liang
 * @version 1.0
 */

// ComputeFactorial.java: Compute factorial of an integer
package chapter4;

import chapter2.MyInput;

public class ComputeFactorial
{
  public static void main(String[] args)
  {
    // Prompt the user to enter an integer
    System.out.println("Please enter a nonnegative integer");
    int n = MyInput.readInt();

    System.out.println("Factorial of " + n + " is " + factorial(n));
  }

  /**Recursive method for computing factorial of n*/
  static long factorial(int n)
  {
    if (n == 0) // Stopping condition
      return 1;
    else
      return n*factorial(n-1); // Call factorial recursively
  }
}