Launching PDF files

[Kate Zoy]

I need my program to launch the default PDF application with a sepcific file from whatever system it is running on. I've been using Runtime.getRuntime().exec(); but I've been told this command will only work on my specific computer, or a very few if lucky. How do I go about launching another program from mine? I've never done this before ^_^"
Thanks so much!

[Joe Ess]

This isn't an IO question, so let's move it to Java In General (intermediate) where there's more traffic.