OCP Oracle Certified Professional Java SE 11 Programmer II Study Guide

Chapter 4Functional Programming

THE OCP EXAM TOPICS COVERED IN THIS CHAPTER INCLUDE THE FOLLOWING:

• Java Stream API
  • Describe the Stream interface and pipelines
  • Use lambda expressions and method references
• Built-in Functional Interfaces
  • Use interfaces from the java.util.function package
  • Use core functional interfaces including Predicate, Consumer, Function and Supplier
  • Use primitive and binary variations of base interfaces of java.util.function package
• Lambda Operations on Streams
  • Extract stream data using map, peek and flatMap methods
  • Search stream data using search findFirst, findAny, anyMatch, allMatch and noneMatch methods
  • Use the Optional class
  • Perform calculations using count, max, min, average and sum stream operations
  • Sort ...