csv string (including new-line characters) format string (where each letter specifies type of value for each column) Class parses that string, in other words, it extracts values, stores them and ...

Guava is a set of core Java libraries from Google that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, ...

这个被埋没的宝藏就是 Apache Commons。 它就像一把 瑞士军刀，能轻松处理字符串、集合、IO 流等日常开发中最常见的“体力活”。本文将带你系统解锁它的核心功能，看看这些“老古董”如何让代码更加优雅。