OCP Oracle Certified Professional Java SE 17 Developer Study Guide

Chapter 10Streams

OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER:

• Working with Streams and Lambda expressions
  • Use Java object and primitive Streams, including lambda expressions implementing functional interfaces, to supply, filter, map, consume, and sort data
  • Perform decomposition, concatenation and reduction, and grouping and partitioning on sequential and parallel streams

By now, you should be comfortable with the lambda and method reference syntax. Both are used when implementing functional interfaces. If you need more practice, you may want to go back and review Chapter 8, “Lambdas and Functional Interfaces,” and Chapter 9, “Collections and Generics.” In this chapter, we add actual functional programming to that, focusing on ...