For Java-based programs such as Maven, Jenkins, Gradle or Tomcat to run, they need to know that Java's JDK is installed. That's the purpose of the JAVA_HOME environment variable. It tells programs ...
The Java Development Kit (JDK) is a development environment for building Java applications and applets that can then run on any Java Virtual Machine (JVM). The JDK includes a variety of development ...
The Oracle Java Runtime Environment (JRE) is a set of software tools for development of Java applications. It combines the Java Virtual Machine (JVM), platform core classes and supporting libraries.