xml的读写操作，这是我曾参加的一个日企的面试，当时未做出来。...

binary tree.java 二叉树的 java 实现，简单易懂-binary tree of binary tree.java realize java, easy-to-read

jaxen是一个用Java开发的XPath 引擎,支持JDOM, dom4j，很有用的．-jaxen is a Java developer to use the XPath engine to support JDOM, dom4j, very useful

jbrobe 安装使用教程 java 测试必备工具-jbrobe installation tutorial an indispensable tool for testing java

通过JAVA设计 GUI 界面的计算器程序，用户可以通过鼠标依次输入参加计算的数值，进行加、减、乘、除等混合运算,这些完成标准计算器的基础操作。当选择科学计算器后，可以实现sin 、 cos 、 tan 、 ln、x^y、x^2、x^3、pi、n!、mod和十六进制除这个以外还可以删除输入，清空结果，求1除X，X百分比，十进制是，八进制，二进制的相互转换。-GUI interface design through JAVA calculator program, the user can take part in the importation of the mouse followed by the numerical calculation for add, subtract, multiply, divide, such as mixed computing, which the basis of the standard calculator operation. When choosing a scientific calculator, you can realize sin, cos, tan, ln, x ^ y, x ^ 2, x ^ 3, pi, n!, Mod and hexadecimal In addition to the outside can also delete the import, empty the results, and one in addition to X, X percentage of the metric system is octal, binary mutual conversion.

俄罗斯方块...但是网络功能暂时没有实现.... 自己写的.肯定不会重复的哦. 功能完备中-Tetris ... but there is no networking capabilities to achieve .... wrote it myself. Certainly not duplicate oh. Complete functions

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

java实现的聊天程序，实现了客户端与服务端的聊天-java chat program realization, the realization of the client and server chat

非Applet的java电子时钟与秒表小程序 包括多线程控制与界面切换-the non- java applet electronic clock with a stopwatch small programs including multithreaded control and interface switching

使用Java编写socket客户端程序的小例子-Socket client program write by java.

java编程代码，包含java的基本语法和高级特性-java programming code, including the basic grammar java and advanced features