factorial.java

Java 入门书的源码

//Copyright (c) 1998, Arthur Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.

// Debugging Exercise 10.8 -- Has Errors

             public class Factorial {
                 public static int product(int n) {
                     return n*product(n-1);
                 }
                 public static void main(String[] args) {
                     System.out.println(product(Integer.parseInt(args[0])));
                 }
             }