Calculator

说明：  办公查询系统实现员工信息查询，部门查询，职位查询等信息(Office inquiry system realizes staff information inquiry, Department inquiry, position inquiry and other information.)

ID3 is data classification algorithm.it is used to generate decision tree from given data set.decision is used to make strategic decision from generated decision tree.

5种不同的排序方法，marge排序,基数排序，交换排序，快速排序,heap排序,另外还包括基数排序字母.测试包括,随机和手动,随机测试的是5种排序的时间,和不同大小的数组,都分别排序两边,一边是排序无顺序的数字,第2边是排序已经有顺序的数字,来测试排序的时间，手动就是自己输入数字来进行排序(5 different ranking methods, marge sort, radix sort, exchange sort, quick sort, heap sort, radix sort the letter also included. Testing, including random and manual, random testing is the five kinds of sorting time, and different sizes array, were all sort on both sides, one side is the number of unordered sort, 2 side is the order of the figures have been sorted, to test the sorting of the time, manual input was their number to be sorted)

java代码写的大数操作，主要实现大数的加减乘除。。值得一看。。(java code written in large numbers operation, the main achievement of large numbers of arithmetic. . Worth a visit. .)

java开发sip的代理服务端代码,需要配合sip软电话使用(Java sip proxy server)

基于lunce，liredemo 演示文档(Demo document based on lunce and liredemo)

说明：  java 学习，第一个程序 hello world(Java learning, the first program Hello World)

这是一个不错的发送彩信的源码，想要研究彩信的朋友可以看一下。(This is a good source send MMS, wanted to study MMS friend can have a look.)

java接口方面的，感兴趣的朋友可以下载下来看看(java interface, interested friends can download them to see)

一款可以实现了百度地图定位和规划功能，该功能很简单，而且又很容易上手，当我们在百度地图的定位后，然后指定一个终点，从可以在当前位置路线规划等功能，喜欢的朋友可以研究一下看看。(A can achieve the function of Baidu map positioning and planning, the function is very simple, and very easy to get started, when we in Baidu map of the location, and then specify a destination, in the current position of route planning and other functions, like a friend can look at to see.)