How to execute a jar file trough java on a different directory

Question

I'm trying to get my java program to execute a jar file which is located on a USB-drive, and I got the code to find the specific file and it's path already but I can't find anything online about how to run said file.

Can anyone help me or direct me to where I can find how to do this?

To clarify, this is not asking how to open a jar file from the cmd, this is asking how to open a jar file from a different java application. This is somewhat related to: how to run a jar file and running command line in java as it combines both of them.

Duplicate of "[How to run a JAR file](http://stackoverflow.com/q/1238145/5221149)" and "[Running Command Line in Java](http://stackoverflow.com/q/8496494/5221149)". — Andreas, Dec 30 '16 at 19:19
This first one did not help me, the second one did. Thank you very much — Urgaan, Dec 30 '16 at 19:24

score 1 · Accepted Answer · answered Dec 30 '16 at 19:14

1

You need to execute java -jar <fully qualified path for your jar on usb> from your java program by using Runtime or ProcessBuilder class.

answered Dec 30 '16 at 19:14

Sanjeev

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Thank you, I didn't realise I needed to use runtime, nor have I ever worked with it (still fairly new to java). – Urgaan Dec 30 '16 at 19:27
your welcome. Glad that helped you :) – Sanjeev Dec 30 '16 at 19:48

How to execute a jar file trough java on a different directory

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