JavaThreadProgrammingCode

通过这个程序，充分理解理解抽象类与接口的概念。(Through this program, understand fully understand the concept of abstract classes and interfaces.)

源码和依赖的jar包都在压缩文件里 test目录下有行情的demo，交易部分的API还没完全做好，可以连上前置和登录 这个java接口算是预览版吧(Source code and dependent jar packages are all demo in the test directory of the compressed file. The API of the transaction part is not yet complete. You can connect the pre-and login java interface as a preview version.)

修改后的锁屏程序，间接阻止win+d、alt+f4，限于java的非底层性，alt+ctrl+del还无法屏蔽(The modified lock-screen process, indirectly prevent win+ d, alt+ f4, limited to java, alt+ ctrl+ del can not shield)

This class represents a currency as identified in the ISO 4217 currency codes.

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.)

LL(1)文法和预测分析方法 1.文法使用产生式来定义； 2.分别求出文法中每一个非终结符的FIRST集、FOLLOW集和SELECT集； 3.画出预测分析表； 4.判定给定的文法是否是LL(1)文法； 5.给定符号串判定是否是文法中的句子，分析过程用分析表格的方式打印出来。(LL(1) Grammar and Predictive Analysis 1. Grammar is defined by production. 2. Find out the FIRST set, FOLLOW set and SELECT set of each non-terminator in grammar. 3. Draw a forecast analysis table. 4. Determine whether a given grammar is LL(1) grammar; 5. Given a string of symbols to determine whether it is a sentence in grammar, the analysis process is printed out in the form of an analysis table.)

说明：  关于在Jbuilder下CVS的相关使用方法的简介(Jbuilder under the CVS on the relevance of the use of the Profile)

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)

说明：  建立快速索引，FastIndex为抽象类，AscFastIndex和DescFastIndex分别为两个实现(Quick Indexing. FastIndex is an abstract class and AscFastIndex and DescFastIndex are two implementations respectively.)

带参数Oracle SQL构造工具。用于帮助在java代码中构造复杂的SQL。应用本工具可以省去构造SQL时的对数据格式的处理的问题，避免了在处理数据格式时候可能出现的许多细节问题。有助于编写精简、紧凑、高质量的代码！(Tool help to structure complicated Oracle SQL in Java code.)