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一个典型的电子通讯录,自己制作的 1．采用JAVA图形用户界面（GUI）进行设计。 2．数据库采用Microsoft Access 2003。 欢迎来到我的主页http://hi.baidu.com/afa015-A typical electronic address book, to produce their own 1. Using JAVA graphical user interface (GUI) design. 2. Database using Microsoft Access 2003. Welcome to my homepage http://hi.baidu.com/afa015

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Menu菜单的演示例子2-Menu menu demonstration Example 2

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用JXTA实现的P2P应用程序，该应用程序主要时完成是，RestoPeer如何找到，创建和加入RestoNet对等组，并对其他的对等体的Request进行回应-using JXTA P2P application, the application procedures will be completed, RestoPeer how to find, create and join groups such as RestoNet right, as well as other bodies such as the right of response to the Request for

这是我在javaawt包附近一周所学的东西，是用身份证工具编写的。

图书查询系统 (B/S网络版)-Book Query System (B/S network version)

Java Maze3D迷宫游戏源码，浏览器上只要安上JAVA解释器就能运行，三维显示迷宫，点击 "New" 按钮开始迷宫之旅, 找不到出口的时候点击"Solve" 按钮显示红色的出口线路，点击"Clear" 清除解答。按上、下、左、右光标键可以单步找出口。-Maze Game Java Maze3D source, as long as the browser installed on JAVA interpreter will be able to run a maze of three-dimensional display, click " New" button to start journey maze, can not find time to click on the export of " Solve" button to show the exports of the red line , click " Clear" to clear answers. By up, down, left and right cursor keys can be single-step to find export.

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