Python

Lists, Tuples and Dictionaries: Python's Everyday Containers

Lists, tuples and dictionaries all hold groups of values, but each one is built for a slightly different job.

C++

Arrays, Vectors, and Your First Taste of the STL

A plain C++ array won't stop you reading past its end. std::vector is the safer, more flexible alternative.

Java

Java Collections: Lists and Maps Made Simple

Flexible ways to store groups of data that grow and shrink.