If you have the Java Runtime Environment installed, and the JAR file is executable, it should open with a double-click. Sometimes, you might see a pop-up to choose which app to run the file.

Each installation of the Java Development Kit (JDK) includes a JAR utility (named jar.sh on Unix and jar.exe on Windows) that provides a variety of helpful functions for working with JAR files, ...

If you have a Web or other computer-based small business, you might find that you need to do some Java programming. Java is a cross-platform programming language from Oracle that anyone can use.

An Android APK file contains all the open-source Java files used to set up and run the Google Android app. You can extract these files and load them into your local ...

JEP 458, Launch Multi-File Source-Code Programs, has been Closed/Delivered for JDK 22. This JEP proposes to enhance the Java Launcher to execute an application supplied as one or more files of ...