Vavr is a functional library for Java 8+ that provides immutable data types and functional control structures.
Vavr是一个适用于Java 8+的函数式库，提供不可变的数据类型和功能控制结构。
Note that functional programming is not only a new set of tools to get accustomed with but also a new paradigm to understand.
请注意，函数式编程不仅是一套需要习惯的新工具，也是一个需要理解的新范式。
So let’s jump into it.
因此，让我们跳进它。
