iText可以制作中文PDF文件的JAVA源程序

java初学者经典小例子，值得一看-classic small example, an eye-catcher

java applet小程序 运行可以产生火焰招牌-running small flame can produce signs

JSP彩色验证码：JSP彩色验证码生成及校验的源代码。-JSP validation code color : Color JSP validation code generation and verification of the source code.

java论坛代码，mvc模式下的bbs论坛程序，界面仿国内高校的论坛。jsp+javabeab+mysql,Structs。 -java code forum, mvc model bbs forum under the procedures, the interface of domestic colleges and universities like the forum. jsp+ javabeab+ mysql, Structs.

用JXTA实现的P2P应用程序，该应用程序主要是以异步方式完成对HungryPeer的功能-using JXTA P2P applications, The application is based on asynchronous manner to the function HungryPeer

一个很贴近的和windows界面很像的记事本-A very close and very much like the windows interface of Notepad

3 pairs of sample codes for basic net apps: . Socket server/client . start the server first . DatagramSocket . start MyDatagramSocketA first . MyDatagramSocketA receive a packet first, and then send a reply MyDatagramSocketA send a packet first, and then receive a reply. . Multicast sender/receiver . start the receiver first- 3 pairs of sample codes for basic net apps: . Socket server/client . start the server first . DatagramSocket . start MyDatagramSocketA first . MyDatagramSocketA receive a packet first, and then send a reply MyDatagramSocketA send a packet first, and then receive a reply. . Multicast sender/receiver . start the receiver first

core java version 7, source code

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

测试程序中产生的JB工程，应该有对文本文件加密，复制等功能-Test procedure generated JB works, should have the text file encryption, replication and other functions