JRE

JRE

The Java Runtime Environment (JRE), also known as Java Runtime, is part of the Java Development Kit (JDK), a set of programming tools for developing Java applications. The Java Runtime Environment provides the minimum requirements for executing a Java application; it consists of the Java Virtual Machine (JVM), core classes, and supporting files. The Java Runtime Environment (JRE) provides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. In addition, two key deployment technologies are part of the JRE: Java Plug-in, which enables applets to run in popular browsers; and Java Web Start, which deploys standalone applications over a network. 

Difference Between JDK,JRE, JVM

JDK or the Java Development Kit is a set of a Java compiler,a Java interpreter, developer tools, Java API libraries, documentation which can be used by Java developers to develop Java-based applications.

JRE or the Java Runtime Environment is a minimum set that includes a Java interpreter, Java API libraries, Java browser plug-in, which make up the minimum environment to execute Java-based applictions.

The JVM or Java Virtual Machine is the core of the Java platform and is a part of both the JDK and JRE that translates Java bytecodes and executes them as native code on the client machine.

JDK includes a JRE as as subset.