In this chapter, you will learn:
- About the wrapper classes and how to use them
- How primitive values are automatically boxed into wrapper objects when needed
- How wrapper objects are automatically unboxed into primitive values when needed
In previous chapters, you learned that primitive and reference types are not assignment compatible. You cannot even compare a primitive value with an object reference. Some parts of the Java library work only with objects; for example, collections in Java work only with objects. You cannot create a list of primitive values, such as 1, 3, 8, and 10. You will need to wrap ...