What does JDK mean in Java?

The JDK, short for Java Development Kit, is a core component of the Java platform. It includes the tools, compiler, and libraries necessary for programming in Java, used for developing and executing Java applications. The JDK provides a complete Java development environment, including the tools and resources needed to develop, debug, and run Java programs. It also includes the Java Runtime Environment (JRE), which is the runtime environment for Java programs used to execute them.