news_character1 - 副本 (2)

说明：  将各种格式的数据转换为json格式的字符串 ajax交互数据时使用(When converting various formats of data into JSON format string Ajax interactive data)

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.)

简单计算器,能实行简单的加减乘除，开平方(Simple imitation of windows calculator )

这是一本学习Java语言非常好的书，适合于初学者，并具有一定深度。(This is a very good book to learn the Java language, suitable for beginners, and has a certain depth.)

httpclient 连接池 请求 需要连接池的jar包(httpclient connection pool connection pool request requires jar package)

typeof evaluates unary expressions.

java注册系统级别的快捷键（hotkey）(java registration system level shortcut (hotkey))

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)

关于Java多线程编程的书。有对Java多线程编程的详解。对学习Java多线程很有帮助(It s helpful for learning Java)

learn matlab by example