The Java 2 SDK
It is the Java 2 SDK, the Java Software Development Kit, that contains all the classes you need to develop Java programs, tools for compiling, running, debugging, and profiling your code. The Java Runtime Environment (JRE) runs your code in a JVM. The main differences between the JRE alone (which browsers have) and the Java 2 SDK are the tools and extra classes used for development. When you want to develop in Java, you need to obtain a Java 2 SDK. The simplest way to get it is to go to the JavaSoft Web site to the link for Products and APIs and chose the Java 2 SDK. It's a fairly large download, so it will take a while, unless you have a fast T1 line or the like. Let's look at the components of the Java 2 SDK.
Classes
The Java ...
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