Java's collections framework has long needed a collection type that represents a sequence of elements with a defined encounter order and a uniform set of operations that apply across such collections.

Learn how to fine-tune and parallelize the behavior of Java iterators, using Java 8's forEach() method and Streams API. Then see some performance benchmarks that might surprise you ...

Why should you use Collections class methods rather than similarly named fields to obtain empty collections? Type safety makes the crucial difference.