Updating JDK on MacOS

Installing JDK on Mac OS:
------------------------------------
a) Download and install the latest version of JDK
b) Type the following command on the Terminal
    $ /usr/libexec/java_home -V

c) Now type the following command on Terminal to check the Java Version
    $java -version




Updating System JDK Version:
-----------------------------------------
System JDK : /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin

Installed JDK : /Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home/bin

steps:
--------
a) cd /System/Library/Frameworks/JavaVM.framework/Versions/
b) sudo rm CurrentJDK
c) sudo ln -s /Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home/bin CurrentJDK


Done !!!