Facebook integration is one of those tedious tasks.For this i searched each & every link available on net.
After the 2 weeks i found the solution.By this you can integrate facebook in your app as well as share some text on your wall.It is really easy to do.
I have given you a link that will help you to do that http://www.android10.org/index.php/articleslibraries/290-facebook-integration-in-your-android-application
By that link you can easily do that.
Thanks to everyone who helped me. I expect the same support from all of you in future as well.
Also you can do this by the Facebook SDK https://developers.facebook.com/docs/mobile/android/build/. It is easy to use and the example code you can find from this link https://github.com/facebook/facebook-android-sdk
