《Cracking the Coding Interview》——第14章：Java——题目5

2014-04-26 19:06

题目：Java中的对象反射机制是什么？有鼠么用？

解法：完全不了解，因为java编程经验太少，完全没用过。查了一些资料后，感觉反射机制是个强大并需要边用边体会的强大工具。能灵活处理各种动态类型下的问题。

代码：

 1 // 14.5 Tell me something about Object Reflection in java.

 2 // Answer:

 3 //    1. class type, constructor, member method, these are a few characteristics of a class

 4 //    2. the Object Reflection is a collection of tool classes, it is able to handle the situation when you know you want certain behavior, but don't know exactly what type of class you need.

 5 //    3. Unlike generics, it mainly deal with member methods and constructors, while generics focus more about data.

 6 //    4. you may get a specific constructor, a member method with customized constraints.

 7 public class TestJava {

 8     public static void main(String[] args) {

 9         return;

10     }

11 }