BiTree77

将一个图片进行裁剪成指定大小的图片, 现在很多网站有这个程序来裁剪头像(Cutting a picture into a specified size of image, Now many sites have this procedure to cutting head)

Java编程思想第四版完整中文高清版(免费)(Java programming ideas fourth edition of the complete Chinese HD version (free))

类似于发送QQ邮件的功能，可以添加正文、标题和附件。(Similar to the function of sending QQ mail, the text, the title, and the attachment can be added.)

寝室信息管理系统，简单的界面，很实用,基于java的寝室管理系统，access(student sushe manage system studentsushe)

猜数字游戏 游戏说明: 1、游戏开始，电脑随机产生一个数字不重复的四位数。 2、将您猜的数点击OK按钮提交。 3、电脑会将您提交的数与它自动产生的数进行比较，结果显示成"*A*B"。A代表位置正确数字也正确，B代表数字 正确但位置不正确，比如："2A2B"表示您有2个数字的位置正确且数值也正确，除此以外，您还猜对了2个数字 ，但位置不对。 4、您共有10次机会，在10次内，如果结果为“4A0B”，游戏成功。如果10次里您都没有猜对游戏失败。(Guessnumber: 1, games started, the computer randomly generated a number of non-repetition of the four-digit. 2, would you guess the number of clicks the OK button to submit. 3, the computer will take you to submit a few with it automatically generated a number of comparison, the result is displayed as* A* B . A representative of the location of the correct figure is also correct, B representative of the number of correct but the location is incorrect, such as: 2A2B that you have a two-digit numerical position is correct and also the right, in addition, you guessed it two figures, but wrong location. 4, your opportunity for a total of 10 times in 10 times, if the results of 4A0B , the game successfully. 10 years if you do not have to guess the failure of the game.)

说明：  谷粒学院后台接口，谷粒学院是一个B2C模式的职业技能在线教育系统，分为前台用户系统和后台运营平台(Cereal college background interface, cereal college is a B2C mode of vocational skills online education system, divided into the foreground user system and background operation platform)

一个类似的日历，数据表的设计。我想了很久，也没有找到一种好办法。如果象Google calendar 一样，可添加月，周，日重复。。数据库里面，我想应该只有一条记录。(A similar calendar, data table design)

java源码程序关于matlab学习(procedures on Matlab learning)

Gmap.net控件使用总结PF环境中能够通过Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac等实现寻找路径、地理编码以及地图展示功能，并支持缓存和运行在Mobile环境中。 GMap.NET的项目地址是http://greatmaps.codeplex.com/ ，我们可以下载相关的例子和源码进行学习，经过学习和研究，发现GMap.NET控件很多功能需要我们自己去实现的。(Gmap.net control environment can use the summary of PF by Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac find the path to achieve such, geocoding and map display functions, and supports caching and running in Mobile environment. GMap.NET project address is http://greatmaps.codeplex.com/, we can download examples and source code to learn, through study and research, found GMap.NET control many functions of our own need to achieve.)

一个很好用的java反编译器，用过很多次，分享一下 java(Decompile java)