Java JDK QuickStart for Mac OS X
The Post Present a Series of Links to Installation Guides for the Java Development Kit 6/7/8 on Mac OS X 10.11 El Capitan Unix/BSD Desktop.
The Oracle Java JDK includes the JRE plus command-line development tools such as compilers and debuggers that are necessary or useful for developing applets and applications.
At this is Time Java 6 for Mac OS X 10.10+ is Not any more Installed by the Software Updates tool so U need provide to Download and Install it Manually!
Install Oracle JDK 8 on Mac OS X
Install Oracle JDK 7 on Mac OS X