In the Java API, classes are grouped into packages. ArrayList is in the package called java.util, which holds a pile of utility classes. You have to know the full name* of the class you want to use in ...

A interview cheat sheet I built in preperation of an interview. Feel free to fork it, make suggestions for adding items to this list. I built this cheat sheet to fit the position I was interviewing ...

This cheat sheet, from Princeton University's Introduction to Programming in Java course, makes a great reference for the basics you need to know, like structure, input/output, data types, and ...