Читать книгу OCP Oracle Certified Professional Java SE 17 Developer Study Guide - Jeanne Boyarsky - Страница 129

OCP EXAM OBJECTIVES COVERED IN THIS CHAPTER:

 Handling date, time, text, numeric and boolean valuesUse primitives and wrapper classes including Math API, parentheses, type promotion, and casting to evaluate arithmetic and boolean expressions

The previous chapter talked a lot about defining variables, but what can you do with a variable once it is created? This chapter introduces operators and shows how you can use them to combine existing variables and create new values. It shows you how to apply operators to various primitive data types, including introducing you to operators that can be applied to objects.