JDK

JRE

Abbreviation for JavaDevelopment Kit

Abbreviation for Java Runtime Environment

JDK is a dedicated kit for solely software development

JRE is a set of software and library designed for executing Java Programs

Unlike JVM, JDK is Platform Dependent

Unlike JVM, JRE is also Platform Dependent

JDK package is a set of tools for debugging and Developing

JRE Package is one that only supports files and libraries for a runtime environment 

JDK package will be provided with an installer file