October 2014
Beginner to intermediate
418 pages
11h 30m
English
Content preview from Java in a Nutshell, 6th Edition
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Chapter 1. Introduction to the Java Environment
Welcome to Java 8. We may be welcoming you back. You may be coming to this ecosystem from another language, or maybe this is your first programming language. Whatever road you may have traveled to get here: welcome. We’re glad you’ve arrived.
Java is a powerful, general-purpose programming environment. It is one of the most widely used programming languages in the world, and has been exceptionally successful in business and enterprise computing.
In this chapter, we’ll set the scene by describing the Java language (which programmers write their applications in), the Java Virtual Machine (which executes those applications), and the Java ecosystem (which provides a lot of the value of the programming environment to development teams).
We’ll briefly cover the history of the Java language and virtual machine, before moving on to discuss the lifecycle of a Java program and clear up some common questions about the differences between Java and other environments.
At the end of the chapter, we’ll introduce Java security, and discuss some of the aspects of Java which relate to secure coding.
The Language, the JVM, and the Ecosystem
The Java programming environment has been around since the late 1990s. It comprises the Java language, and the supporting runtime, otherwise known as the Java Virtual Machine (JVM).
At the time that Java was initially developed, this split was considered novel, but recent trends in software development have made ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.