Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...

One of the conveniences of Groovy is the ability to easily perform filtering and transformation operations on collections via Groovy’s closure support. Guava brings filtering and transformation on ...

了解Java中集合框架的Collection接口功能与应用。 1、 Collection接口是集合体系的根接口，定义了集合对象常用的基本操作方法。该接口在Java类库中有多种具体实现，旨在为不同类型的集合提供统一的操作规范，最大限度地实现集合操作的一致性与通用性，便于程序 ...

The Java Platform provides the most commonly used data structures in the form of the Collections Framework, and it provides a rich API to operate on them. In this first article in a two-part series, I ...