Detecting Windows or Linux? [duplicate]

Question

I am seeking to run a common Java program in both Windows and Linux.

The program needs to do some things differently on each platform.

So how can / should my Java program detect it is running under Linux vs. Windows?

Answer 1

apache commons lang has a class SystemUtils.java you can use :

SystemUtils.IS_OS_LINUX SystemUtils.IS_OS_WINDOWS 

Answer 2

Try:

System.getProperty("os.name"); 

http://docs.oracle.com/javase/7/docs/api/java/lang/System.html#getProperties%28%29