As the runtime environment for Java, the JRE contains the Java class libraries, the Java class loader, and the Java virtual machine. In this system: From an installation perspective, anytime you ...

JAVA_HOME is an operating system (OS) environment variable which can optionally be set after either the Java Development Kit (JDK) or the Java Runtime Environment (JRE) is installed. The JAVA_HOME ...

In order for a software program to execute code, it needs a runtime environment to load class files, verify access to memory and retrieve system resources. The JRE specifically contains a Java class ...