Java Development Kit
The Java Development Kit (JDK) is a software development kit for development of a Java platform application. The JDK is designed to be mainly used to communicate with the Java Runtime Environment (JRE), but it can be replaced by other JDK-based languages which can communicate with the JRE and JVM. Furthermore, Java bytecode can be compiled statically directly into native code only with a JVM but without the necessity of the Java runtime environment running dynamically.