Homework07

一个简单的server-client聊天程序，使用java语言，tcp协议完成(A simple server-client chat program, the use of java language, tcp agreement)

j​ a​ v​ a​ 聊​ 天​ 程​ 序​ 源​ 代​ 码(java chat program source code)

Extension Registry extends Extension Registry Lite.

用哈希表实现了节点的插入，删除，并计算冲突次数(A hash table implementation of the node insert, delete, and calculate the number of conflicts)

WebWork是由OpenSymphony组织开发的，致力于组件化和代码重用的J2EE Web框架。WebWork目前最新版本是2.2.2，现在的WebWork2.x前身是Rickard Oberg开发的WebWork，但现在WebWork已经被拆分成了Xwork1和WebWork2两个项目。(WebWork is developed by the OpenSymphony organization dedicated to componentization and code reuse J2EE Web framework. WebWork latest version is 2.2.2, and now WebWork2.x predecessor Rickard Oberg developed WebWork, but now has been split into Xwork1 WebWork and WebWork2 two projects.)

说明：  oints in data to the points in model. Fit with respect to minimize the sum of square

Java版贪吃蛇。参照某人的博客做的。很有价值。(Java version of Snake. Reference to someone' s blog. Valuable.)

说明：  birch算法是聚类算法的一种，克服了k-means算法的缺点，这里提供了详细的讲解ppt和代码(The birch algorithm is a kind of clustering algorithm, which overcomes the shortcomings of the k-means algorithm. Here is a detailed explanation of ppt and code.)

java的abstract类也是比较难使用的一个类，故给你发了几个典型程序(java the abstract category is more difficult to use in a class, so you made a few typical procedure)

简单的IO适合初学者，来MLDN李兴华的初级教程(Simple IO for beginners)