This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I'm moving this thread to the "Java in General (beginner)" forum. The quick answer to the question is that everything in java is a linked dynamically. And if you want a library, we have jar files which are collections of class files (kinda similar to .objs's)