Perhaps more than any programming language, Java continues to have a profound impact on how people navigate today's world. Java's functionality is responsible for setting a great deal of what users expect in terms of performance from their internet-accessible devices. The history of Java is more than two decades long and the language continues to grow and adapt in response to evolving consumer and business expectations. Throughout all of these changes, however, the performance of Java applications remains a paramount concern for developers. Read this eBook to get a deep dive on the top 5 Java Performance Considerations.
Cloud computing has been gaining momentum for years. As the technology leaves the early adopter phase and becomes mainstream, many organizations find themselves scrambling to overcome the challenges that come with a more distributed infrastructure. One of those difficulties is getting through a major cloud migration. It is one thing to roll out a few applications and cloud pilot projects, it is an entirely different challenge to start using the cloud across multiple lines of business at massive scale. That is the point that organizations are beginning to reach, and the time has come to take a serious look at cloud migration best practices.
This guide is about reflection, the ability of a computer program to examine and modify the structure and behavior (specifically the values, meta-data, properties and functions) of the program at runtime. We are going to explain what reflection is in general and how can be used in Java. Real uses cases about different reflection uses are listed in the next chapters. Several code snippets will be shown; at the end of this tutorial you can find a compressed file that contains all these examples. All code has been written using Eclipse Luna 4.4 and Java update 8.25, no third party libraries are needed.
In software engineering and programming language theory, the abstraction principle (or the principle of abstraction) is a basic dictum that aims to reduce duplication of information in a program (usually with emphasis on code duplication) whenever practical by making use of abstractions provided by the programming language or software libraries. The principle is sometimes stated as a recommendation to the programmer, but sometimes stated as requirement of the programming language, assuming it is self-understood why abstractions are desirable to use.
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