Think-In-Java-4

一本比较简单的java入门教程，为初学java的便宜提供了一个比较低的门槛(A relatively simple java introductory tutorial provides a low threshold for beginner java cheaper)

hadoop是众所周知的云计算平台，hadoopGIS是基于hadoop进行云GIS试验的成果，实现在云环境下的数据存储、读取等功能(hadoop is well known cloud computing platform, hadoopGIS for cloud hadoop GIS based on test results, achieved under the cloud of data storage, reading and other functions)

kakfa+springboot+flume日志管理工具，可以方便日志管理(kafka and springboot and flume log4j manage log,if you need ,you could download,thank you !)

正则表达式的一个小例子，利用正则表达式判断文件中的字符是什么类型的。(Regular expression in a small example of the use of regular expressions in the document to determine what type of character.)

JD-GUI是一个用于Java编程语言源代码“.class”文件反编译软件。您可以使用JD-GUI浏览和重建源代码的即时访问方法和字段，以代码高度方式来显示反编译过来的代码。(JD-GUI is a decompiling software for Java programming language source code ". class" file. You can use JD-GUI to browse and rebuild instant access methods and fields of source code to display decompiled code in code height.)

将指定经纬度的点在地图上显示出来，提供地图图片放大缩小和拖动功能。(The designated latitude and longitude points will be displayed on the map, providing map image zooming and zooming and dragging functions.)

强大的搜索引擎，目前最流行的全文搜索引擎，分享给大家一起学习，共同进步。(The powerful search engine, the most popular full text search engine, is sharing for everyone to learn together and make progress together.)

公交查询系统 Android studio(Bus search system can used by Android studio)

说明：  云计算资源调度--遗传算法，利用遗传算法在cloudsim平台进行模拟任务调度，内含有差分隐私算法，以及其优化(task schedualing Cloud computing resource scheduling - genetic algorithm (ga) is used to simulate task scheduling on cloudsim platform)

说明：  一只青蛙一次可以跳上1级台阶，也可以跳上2级。求该青蛙跳上一个n级的台阶总共有多少种跳法。要求：分别用普通方法和递归方法实现(A frog can jump up a step or two at a time. Find out how many jumping methods the frog can use to jump up an n-step. Requirements: Implemented by common method and recursive method respectively)