Install JDK on OS X 10.9.3 (or above?)

1. Go to oracle web site to download the OS X dedicated installer, e.g. jdk-7u60-macosx-x64.dmg.
2. Double click and follow the prompts to install.

Note: There is one point needs to clarify. Some posts and oracle official installation instructions mentions you need to go to Applications -> Utilities -> Java Preferences and do certain operations. It seems no need do anything on it now because JDK is not pre-installed on OS X 10.9.x or above anymore, and you even can't find Java Preference in Utilities folder. The Java control panel is now at System Preference.

Open terminal and type java -version

...Now can start working.