Creating a simple cache in Java
How to conceptually make a cache in Java
Design 4.0
A peek into the history of this site
Collections: When to use an ArrayList over a LinkedList (& visa versa)
When and why you may want to use one over the other
Collections: HashSet & TreeSet
What are they & when would you want to use one over the other?
Did it happen?
How do we know whether something actually happened?