If I set the system property with -D, can I access it from my code?

Question

I would like to be able to set the property on the JVM using the -D switch. If I do, can I access it from my code? If so, how?

Answer 1

Use System.getProperty("mykey");

Answer 2

Besides System.getProperty , there is also Integer.getInteger and Boolean.getBoolean if you want to get an integral or boolean value . Boolean.getBoolean

Answer 3

and as a bonus:

 System.setProperty("yourkey",yourValue); //works very well too 

allows you to make sure that the property is set if you want to check things