Implements

Can anyone give me a detailed definition of what the java term "implements" means?

The following has a lot of information: What Is an Interface? (The Java™ Tutorials > Learning the Java Language > Object-Oriented Programming Concepts)

Copeg was nice enough to give you the link, but I'd just like to point out that a quick google of "java implements" provides some really informative links, including that one. I'd suggest you read through them, preferably even try out some code yourself, and come back with any specific questions you have.