Аннотация
Welcome to Java 11.
That version number probably surprises you as much as it does us. It seems like only yesterday that Java 5 was the new thing, and yet here we are, 14 years and 6 major versions later.
You may be coming to the Java 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, generalpurpose 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 that relate to secure coding.
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