How to Get name of the place using longitude and latitude?

I am developing an application which will determine in which building/college/University you are?
Then it will find the available labs in that building. I have the coordinates of those places.
I want to know that once I get the current location in terms of longitude and latitude how will I get the name of that place?
I have seen some applications which checks you in when you go to some coffee place or pubs.

Thanks for the help.

you can use Geocoding to determine the name of the place

I Just want to confirm that the Geocoder will give the name of the city. Can I get the name of the place as well?

Thanks for the reply.

If by name of the place you mean building name then i dont think it would work but you can retrieve street address and city name

Thanks.

I looked the Geocoder class and I think that can help me in getting what I need.
Is anyone here aware of the problem of Samsung Galaxy GPS system?
If yes is there any solution to that?
I have tried some approaches but nothing worked.

Is anyone here aware of the problem of Samsung Galaxy GPS system?

What is "the problem"?

The GPS system is not reliable. It stops working or I should say it works randomly.
There is a lot of buzz in the community regarding the same. A quick Google search will yield thousands of complaints.

Is it possible to get the directions as well using the longitude and latitude.
I want to locate the user on his co-ordinates and then other objects in a plane by maintaining their relative positioning.

Anything related to "getting directions" will likely involve calls to the Google Maps web service. I don't think Android comes with an API that wraps those calls in Java classes, but such classes probably exist somewhere out on the net.