java setting multiple system properties via command line options

if you want to set system properties when you invoke java (vs setting them in the system before you start java/ command prompt) can do so with the -D option to java.exe or javaw.exe

You do this for each property.


Lets assume your command line to start jva initially looks like:
java org.mypack.Main

 So if you need to set to properties
usePort=2322
factoryClass=org.mypack.net.Factory1

Then the new command line will be:

java -DusePort=2322 -DfactoryClass=org.mypack.net.Factory1 org.mypack.Main

Pretty obvious except I was not sure if I need to put a ; between properties or have multiple -D

For those using an IDE:
See image - remember these are VM options (VM arguments) and not program arguments
(Click image for full size)