ManageSystem

非常实用的java小程序，实现了ClockDemo功能，对初学者帮助很大，希望能帮到您。(Very useful java applet to achieve ClockDemo function, great help for beginners, hoping to help you. )

说明：  本系统是基于java开发的聊天室。服务端和客户端可以发送和接收消息，由于未写出服务端窗口，聊天记录只会在输出的窗口显示。如果服务器还未启动，客户端不能利用聊天室发消息。若在运行过程中服务器断开，系统会有提示。(This system is a chat room based on java. Both the server and the client can send and receive messages. Since the server window is not written out, the chat record will only be displayed in the output window. If the server has not been started, the client can not use the chat room to send messages. If the server is disconnected during operation, the system will be prompted.)

This interface supplies all UI-specific behavior of the window manager.

Implementation of with no entries.

说明：  java的一个爬虫抓取物流信息的小demo，本demo测试抓取快递100的物流轨迹信息(Java crawler to grab logistics information of the small demo, this demo test to grab express 100 logistics trajectory information)

简易的实现了管理员登录，查询，管理的功能(Simple realization of administrator login, query, management functions)

Java教程，21天精通JAVA电子书，清晰版。(Java Tutorial, 21 days proficient JAVA books, clear version.)

test my program hello world zheng

记账：记录收入支出情况，随时可查看账单明细(Bookkeeping: recording income and expenditure, the details of the bill can be viewed at any time)

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)