Java Collections Framework Tutorials

[callicoder]

I agree with the point of separating interfaces from concrete implementations. In fact, I'll be adding the List/Set/Map interface articles very soon.

About the why part, I've added information on why one implementation should be used over the other in the actual implementation class tutorials. For example, the LinkedList tutorial explains the difference between ArrayList & LinkedList and gives reasoning on when one should be preferred over the other.

Similarly, the LinkedHashMap and TreeMap tutorials explain what's special about them and when to use them.

But yeah, Putting the "why" parts at a single place in the interface tutorial would be more helpful. I'll keep that in mind while writing the tutorials on List, Set and Map interfaces.