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多线程通信描述的程序,设计项目:一个..
多线程通信 程序说明 Ⅰ、设计项目: 简单的聊天程序 Ⅱ、设计人: 刘亚焱 Ⅲ、设计时间: 2003.5.6 Ⅳ、设计步骤: 1)需求分析: 用java实现底层网络通信,我用的是 TCP/IP协议里的套接字(Socket)编程接口来实现网络通讯。 2)设计部分: socket是一种流式通信机制,是一种基于连接的通信,即,在通信之前通信双方确认身份并建立一条 专用的虚拟连接通道,然后他们通过这条通道传送数据信息进行通信,当通信结束时再将原来所建的连 接拆除。-multithreaded communications description of the procedures, design projects : a simple chat program II, designer : Liu Yan III, the design time : 2003.5.6 IV, the design steps : 1) Demand Analysis : java achieve underlying network communication, I use the TCP/The IP socket (Socket) programming interfaces to network communications. 2) Design : socket is a streaming communication mechanism is based on a link of communication, namely, the communication before the two sides identified telecommunications and the establishment of a dedicated virtual link, and then they pass this information channel for transmission of data communications, when the communication ended when it originally construction of the link removed.
- 2022-02-02 13:34:24下载
- 积分:1
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真正的
Real - Java floating point library for MIDP devices-Current version: 1.13
Copyright: 2003-2009 Roar Lauritzsen, roarl at users.sourceforge.net
Availability: The library is available under the GPL license, or for a fee for commercial use.
Develop: See http://sourceforge.net/projects/real-java
Feedback: Comments, reports of use, bug reports, bug fixes, improvements, performance tests and comparisons to similar libraries are all welcome.
Javadoc: Read the full documentation here.
"Real.java" is a self-contained, single file Java floating point emulation library for MIDP devices, such as a Java-enabled cell-phone or PDA. The MIDP/CLDC 1.0 standard does not support the basic floating point types "float" or "double", so when I set out to program a scientific calculator for my cell-phone, I had to reinvent floating point arithmetic from scratch, using only integer basic types. I found it a very interesting and educating challenge.
Download
For a pure java version, use the f
- 2023-02-09 08:35:04下载
- 积分:1
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alter table tbl_name add col_name type
例如,给表增加一列weight
mysql>alter table...
alter table tbl_name add col_name type
例如,给表增加一列weight
mysql>alter table pet add weight int
删除列
alter table tbl_name drop col_name
例如,删除列weight:
mysql>alter table pet drop weight
改变列
alter table tbl_name modify col_name type
例如,改变weight的类型:
mysql> alter table pet modify weight samllint
另一种方法是:
alter table tbl_name change old_col_name col_name type
例如:
mysql> alter table pet change weight weight samllint
给列更名
mysql>alter table pet change weight wei
给表更名
alter table tbl_name rename new_tbl
例如,把pet表更名为animal
mysql>alter table pet rename animal
-alter table tbl_name add col_name type for example, to form an increase in weight mysql> alter table pet add weight int Remove Columns alter table tbl_name drop col_name For example, the deletion of column weight: mysql> alter table pet drop weight change out alter table tbl_name modify col_name type for example, the type of weight change: mysql> alter table pet modify w
- 2022-02-11 13:09:52下载
- 积分:1
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Oracle发布的自oracle8i以后可以使用的将oracle数据库记录直接映射为XML文件的程序依赖包,很不错。...
Oracle发布的自oracle8i以后可以使用的将oracle数据库记录直接映射为XML文件的程序依赖包,很不错。-Oracle released from oracle8i then you can use the oracle database records will direct mapping of XML documents on the procedure kits, is pretty good.
- 2022-08-16 10:42:18下载
- 积分:1
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一个经典的单例模式demo(模拟打印机)
一个经典的单例模式demo(模拟打印机)-Example of a classic single-mode demo (Analog printer)
- 2022-03-26 15:12:38下载
- 积分:1
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学习一门新的编程语言是很吓人的,特别是如果你需要的话…
Learning a new programming language can be intimidating, especially if you need to get up and running with it quickly. If you are a current Java developer who needs to learn C#, this book is essential. Java and C# share many common characteristics and by focussing on the key similarities and differences between the two languages, From Java to C#: A Developer s Guide enables you to use your existing knowledge of object-oriented concepts to learn C# efficiently and quickly. However, features of C# that are totally absent in Java are given the detailed description they warrant.
This practical guide will help you move easily from Java and J2EE to C# and .NET concepts as quickly as possible.
- 2022-07-15 22:41:41下载
- 积分:1
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在线聊天系统
在线聊天系统-Chat
- 2022-11-21 14:20:03下载
- 积分:1
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Java编写的一个论坛,请各位多多指教!
Java编写的一个论坛,请各位多多指教!-Written in a Java forum, I urge the exhibitions!
- 2022-02-02 06:29:05下载
- 积分:1
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Java Swing用户接口编程一例
Java Swing用户接口编程一例-Java Swing user interface programming case
- 2022-03-21 17:52:35下载
- 积分:1
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虽然比较简单,但是应该有些用的JAVA小程序。
1.可以嵌进网页中的 日历
2.挖地雷 的小程序
3.俄罗斯方块的简洁版
4.解释多态应用的小程...
虽然比较简单,但是应该有些用的JAVA小程序。
1.可以嵌进网页中的 日历
2.挖地雷 的小程序
3.俄罗斯方块的简洁版
4.解释多态应用的小程序-Although relatively simple, but should be used in some JAVA applets. 1. Can嵌进calendar page 2. Dug mines applet 3. The simple version of Tetris 4. Explain polymorphic applications applet
- 2022-03-17 01:39:03下载
- 积分:1