NSNINTERNSFINAL

这是一本学习Java语言非常好的书，适合于初学者，并具有一定深度。(This is a very good book to learn the Java language, suitable for beginners, and has a certain depth.)

使用java实现的最简单的客户-服务器程序，实现了两者之间的交互，可以在此基础上完成多种操作。(java use of the most simple client-server procedures, the interaction between the two. This can be completed on the basis of a variety of operation.)

用JavaMail实现邮件发送。用户验证及附件(Send e-mail using JavaMail achieve. User authentication and accessories)

实现一个程序，对用户输入的类权限、成员权限、以及使用该类对象的环境与这个类的关系，判断这个环境中能不能访问这个类的这个成员。 4． 背景知识介绍：对类成员的访问权限由3个方面决定：（1）类的访问权限（public或default），（2）成员变量的访问权限（public, protected, default或private），以及环境与类的相互关系（同类SameClass，同包不同类SamePackageNoteSameClass，不同包但为子类OtherPackageSubClass，不同包非子类OtherPackageNotSubClass）。例如，如果一个类A是public的，它的一个成员变量x是protected的，则这个成员变量的访问权限是default的，试图访问这个类的一个运行环境与A的关系是OtherPackageSubClass，则这个环境中能够访问变量x。(Implement a program, the relationship between the classes of permissions, user input member permissions, as well as the environment of use of such objects of this class, it is judged in this environment can not access this members of this class. 4. Background knowledge: the access rights of the class members decided by three aspects: (1) access rights (public or default), (2) the member variable access rights (public, protected, default or private), as well as environmental and the relationship of the class (of similar SameClass, same package different classes SamePackageNoteSameClass, different packages, but for subclass OtherPackageSubClass, different package non-subclass OtherPackageNotSubClass). For example, if a class A is public, it s a member variable x is protected, the access rights of the member variables is default, tries to access a runtime environment for this class A relationship is OtherPackageSubClass this environment be able to access the variable x.)

Wicked Cool Java contains 101 fun, interesting, and useful ways to get more out of Java. This isn’t intended as a Java tutorial–it’s targeted at developers and system architects who have some basic Java knowledge but may not be familiar with the wide range of libraries available. Full of example code and ideas for combining them in useful projects, this book is perfect for hobbyists, and professionals will find tips and open-source projects to enhance their code and make their jobs easier. Topics include converting a non-XML text structure into XML using a parser generator, experimenting with a Java simulator for the Cell Matrix, creating dynamic music and sound in Java, working with open-source class libraries for scientific and mathematical applications, and many more.

说明：  spring demo as spring boot

Merkle-Hellman knapsack cryptosystem

Basic scroll view example Source Code for Andriod.

Teltonika config java sources.

实现企业的管理，注册，专利，等等。。。功能。(xia jun javascript)