一个Java的计算器代码，已经通过编译，能实现基本的运算。

用Java实现的局域网广播系统的课程设计-Implemented using Java LAN broadcasting system curriculum design! ! !

An example of how to conect a data base using java and microsoft sql server

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初级编程！对初学者有很大的帮助！同时对于其它人有参考价值-primary JAVA programming! For beginners there are a great help! Meanwhile, other people have reference value

用jbuilder做的视频播放器-do with JBuilder video player

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

struts1.2.4学习心得内含代码（struts初学者必备资料）-struts1.2.4 study notes containing code (struts beginners essential information)

java的简单东西 看了就知道-simple things read on to know

一个使用菜单程序-use a menu procedures