How do I use JDK 7 on Mac OSX?

Question

I would like to use the WatchService API as mentioned in this link: http://download.oracle.com/javase/tutorial/essential/io/notification.html

After reading around, I

Answer 1

Now, Use command

Update 2020: 04

To install Java7 with homebrew run:

brew tap homebrew/cask-versions
brew cask install java7

Hope this help.