What are the operation methods of map and flatMap in Java8 StreamApi
This article mainly explains "what is the map and flatMap operation method in Java8 StreamApi". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let Xiaobian take you to learn "what is the map and flatMap operation method in Java8 StreamApi"!
1. preface
Java 8 provides a very useful Stream API that allows easy manipulation of collections. Today we're going to talk about two Stream intermediate operations map(Function