Understanding JRE (Java Runtime Environment): Overview and Components

Rumman Ansari   Software Engineer   2024-10-22 11:31:21   8564  Share
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Java Runtime Environment (JRE)

JRE is an acronym for Java Runtime Environment. It is used to provide runtime environment. provides the platform core classes, libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. JRE is part of the Java Development Kit (JDK), but can be downloaded separately. JRE was originally developed by Sun Microsystems Inc., a wholly-owned subsidiary of Oracle Corporation. JRE is can not used for development, only used for run the applications.It physically exists.

Point wise overview:

  • It is an implementation of the Java Virtual Machine* which actually executes Java programs.
  • Java Runtime Environment is a plug-in needed for running java programs.
  • The JRE is smaller than the JDK so it needs less Disk space.
  • It includes the JVM , Core libraries and other additional components to run applications and applets written in Java.
  • The JRE can be downloaded/supported freely from https://www.java.com