These standards give the developer and consumer confidence that the technology will be compatible with other components, even if they come from a different technology vendor. This means there are specifications for the technologies that comprise the environment. One of the main reasons for the success of Java is that this ecosystem is a standardized environment. Throughout Java’s history, these vendors both cooperated and competed on aspects of Java technology. NET platform and Java is that Java was always conceived as a relatively open ecosystem of multiple vendors. One important difference between Microsoft’s.

NET environment, announced a few years after Java, adopted a very similar approach to platform architecture. It comprises the Java language, and the supporting runtime, otherwise known as the Java Virtual Machine (JVM).Īt the time that Java was initially developed, this split was considered novel, but recent trends in software development have made it more commonplace. The Java programming environment has been around since the late 1990s. 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.Īt the end of the chapter, we’ll introduce Java security, and discuss some of the aspects of Java which relate to secure coding.

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). It is one of the most widely used programming languages in the world, and has been exceptionally successful in business and enterprise computing.

Java is a powerful, general-purpose programming environment. Whatever road you may have traveled to get here: welcome. You may be coming to this ecosystem from another language, or maybe this is your first programming language.

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