Graph API http://developers.facebook.com/docs/reference/api/

RestFB is a simple and flexible Facebook Graph API and Old REST API client written in Java.
It is open source software released under the terms of the MIT License.

Download

Version 1.6.9 (released October 21, 2011) of the library is available via Google Code.
View the changelog, or download it here.

The project zip contains sample code in the source/examples directory which can help you get up and running quickly.

If you're using Maven, it's easy to integrate RestFB with your project:

<dependency>
  <groupId>com.restfb</groupId>
  <artifactId>restfb</artifactId>
  <version>1.6.9</version>
</dependency>

fHalo is a Java Facebook Graph API framework.   http://fhalo.org/tutorial.html

This tutorial will guide you through the key steps to use fHalo framework.

• Step 1: Import fHalo.jar
• Step 2: Get access token
• Step 3: Create instance
• Step 4: Using API

　　　　　- 1. Get object information (e.g., user, page ..)

　　　　　- 2. Get connection information (e.g., friends, feed ..)

　　　　　- 3. Publish feed friend's timeline

　　　　　- 4. Delete object

　　　　　- 5. Search object

　　　　　- 6. Search object by FQL (see FQL documentation)

　　　　　- 7. Like object

　　　　　- 8. Upload photo

　　　　　- 9. Checkin the place