Not able to file hadoop jar files while Setting up a eclipse in my local machine

Hi,

As per the instructor i am trying to setup eclipse after downloading java 1.7ver and eclipse(mars), I was able to install both these successfully but when i try to add hadoop jar files using "Add External Jar files" i am not finding any jar files at all. Plese find the steps below.

1)downloaded java SDK 1.7 and Eclipse mars
2)Installed java
3)Installed Eclipse
4)Opened a new java project(lokMr) using eclipse
5)Added the new class
6) Now i need to refer hadoop jar files using Build Path....

Not able to file hadoop jar files while Setting up a eclipse in my local machine