OCP Oracle Certified Professional Java SE 17 Developer Study Guide

Chapter 4Core APIs

OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER:

• Handling date, time, text, numeric and boolean values
  • Use primitives and wrapper classes including Math API, parentheses, type promotion, and casting to evaluate arithmetic and boolean expressions
  • Manipulate text, including text blocks, using String and StringBuilder classes
  • Manipulate date, time, duration, period, instant and time-zone objects using Date-Time API
• Working with Arrays and Collections
  • Create Java arrays, List, Set, Map, and Deque collections, and add, remove, update, retrieve and sort their elements

In the context of an application programming interface (API), an interface refers to a group of classes or Java interface definitions giving you access ...