The Java JDK (Java Development Kit) is a software development environment that creates Java applications. It includes tools and libraries that enable developers to write, compile, and execute Java ...

A Java compiler takes a text file and compiles it into a platform-independent Java file, meaning the compiled code can run on any OS. Learn how it works.

Java is both a programming language and a computing platform. The former allows you to develop applications and the latter allows you to run the applications that you, or others, develop.

Learn how to optimize JVM and JIT compiler performance for better execution speed, memory usage, and resource utilization in your Java applications—and how to check your results.