3] Run a Java or JAR file. Now when you double click on the JAR file, it will automatically run like how EXE files execute. If there is a problem with version, the file should inform you.

But the fact is, if you open a Java JAR file, you’re really just opening a ZIP file that contains all of the resources a Java app needs to run. ... Open a JAR Java command; JAR option: Meaning: jar: ...

How do you run a JAR at the command line? As long as you have Java installed, and the PATH variable points to the \bin directory of the JDK, you issue the following command to run a JAR file at the ...

Verify Java is associated with JNLP files using the Java Control Panel window. Open it by clicking "Start," selecting "Control Panel," clicking "Programs" and clicking the "Java (32-bit)" option.