java -version If Java isn't already installed, type this command: sudo apt install default-jre Once Java is installed, 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 ...

When downloading and installing Java, there are two possible options. The first option is to download and install the JRE, and the second is to download and install the JDK. Any program written in ...