Anytime you have a collection of things you will need some mechanism to systematically step though the items in that collection. As an everyday example, consider the television remote control ...

Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections.

In this article, key Eclipse Collections contributors demonstrate techniques for refactoring standard Java code to Eclipse Collections, and demonstrate some of the memory savings you can achieve.