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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)

应用java发送邮件的源码2个，功能也比较强大(mail application source code two, the more powerful features)

第2章 基于Ajax的留言板示例 第3章 JavaScript在Ajax中的作用范例 ……………… 第20章 程序描述：本章将实现上传文件时显示进度条的功能。当上传文件时，客户端同时显示文件上传的进度，从而及时了解文件传送情况(Chapter 2 on the message board Ajax example, Chapter 3 of JavaScript in Ajax for the using examples ... ... ... ... ... ... Chapter 20 proceedings Description : The chapter will achieve upload documents show the progress of the function. When upload documents, the client also shows that the progress of file uploads, so the time to understand the transmission of documents)

3.设计一个幻灯片播放窗口，在窗口中点击鼠标时，在红、绿、蓝三种颜色的面板之间切换。程序文件命名为Exe8_3.java。(3. Design a slideshow window, click the mouse, in between red, green, and blue switch panel in the window. Program file named Exe8_3.java.)

初学java的可以借鉴，学java的可以借鉴学java的可以借鉴(Lessons for beginners of Java)

扑克牌，包含大小王，实现发牌，出牌等功能的java(Playing cards, containing the size of the king, the licensing, the cards feature java)

说明：  基础练习，这是Java入门课程的基础练习。包括了许多的知识点(Basic exercises, which are the basic exercises of the Java introductory course. It includes many knowledge points.)

关于java的一些课后作业的相关解释 对于初学者还是有一定程度的帮助 希望大家呢能祈祷帮助(java on the after-school operations related explanation for beginners or to a certain extent, hopefully with the help of Andrew can prayer help?)

springboot mybatis开发基本类生成项目代码(Springboot mybatis develops basic classes to generate project code)

异常的应用示例 throws, throw, try, catch, finally 异常链的传递(exception demo throws, throw, try, catch, finally)