houtai

If the user has a lock pattern set already, makes them confirm the existing one.

Defines a block of content control. See the switch element definition .

说明：  

The following words are used as keywords in proposed extensions and are therefore reserved to allow for the possibility of future adoption of those extensions Source Code for Andriod.

这是关于学生选修和老师教学的代码作业。这是java学习类的时候的作业希望对大家有用(This is about teaching the students and teachers of the code elective operations. This is the java class to learn when operating the hope that useful)

Java监视内存使用情况，运行Java 程序一般要消耗大量的内存，这曾经是java 的一个致命弱点。当然随着硬件的飞速发展，这个缺点有所弱化，同时java 虚拟机的逐渐成熟，也使内存的消耗量减少。那么一个较小java 程序 　　究竟要消耗多少内存呢？本例将实现一个能自我监视内存使用的简单程序，来评估java 程序的内存消耗情况。(Java monitor memory usage, run Java programs generally consume large amounts of memory, which used to be a fatal weakness of java. Of course, with the rapid development of hardware, this shortcoming has been weakened, while mature java virtual machine, but also to reduce memory consumption. Then a small java program How to consume much memory? This example of a simple program memory can be used for self-monitoring to assess memory consumption java program.)

说明：  普通克里金算法实现，使用java进行的一个普通克里金算法实现，本代码开源(Ordinary kriging algorithm implementation)

很好的一个直接画史密斯圆图的源代码，且圆图的精度很高(a good painting directly Smith Chart of source code, which plans a round of high accuracy)

java学习用书，可以更好的学习java，掌握java的基础知识(java study books, you can better learn java, java master the basics)

使用java语言通过反射创新类的新对象，实现功能(Using java language class through reflection innovative new objects, to achieve functional)