How to run a JAR file

To run a JAR file, you need to have Java installed on your computer. If you don't have it installed, you can download it from the Oracle website.

Once you have Java installed, you can run a JAR file by using the java command followed by the -jar option and the name of the JAR file:

java -jar example.jar

Make sure that you include the .jar extension in the name of the file.

If the JAR file requires additional arguments, you can specify them after the JAR name. For example:

java -jar example.jar arg1 arg2

You can also specify options for the java command, such as the amount of memory to use, by including them before the -jar option. For example:

java -Xmx256m -jar example.jar

This will run the JAR file with a maximum heap size of 256 MB.

If you have any problems running the JAR file, you can try using the -verbose option to get more information about the error:

java -jar example.jar -verbose

This will print out additional debugging information that may help you troubleshoot the problem.