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 ...

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Java is a computer programming language that is found on desktops to servers to mobile devices and also smart cards. The Java application runs on most of the systems including Linux, Mac, and Windows.

Whether you want to begin coding in Java or just wish to run Java apps, you first need to learn how to install Java. In this post, we’ll see how to do that. Why do you need to install Java?