How to Add Ads in your app

Step 1:
                Sign up as an AdMob or DFP publisher. Reference Link

Step 2:
                Than follow the steps of This link Nothing much in that just say that add google-play-service-lib into your project as library.

Step 3:
                Now in your admob account add new monetize new app which you can find in home page.

Step 4:
                Now follow the steps in that.
                1. Select an app to monetize
                        Enter the name of your app as you'd like it to appear in the app store. and chose Android platform. And add app
                2. Select ad format and name ad unit
                        For customize your banner or interstitial and Save it.
                3. View setup instructions
                        On that instructions you can mail it and then click Create ad unit.

                        Setup successfully.

Step 5:
                Now follow the steps of This doc for setup your application.
                And follow the steps ofAdMob.

Enjoy... :)