->Wrapper Class will convert primitive data types into objects. The objects are necessary if we wish to modify the arguments passed into the method (because primitive types are passed by value). ->The ...

Wrapper classes in Java convert primitive data types into objects. They are useful when working with Collections, Streams, Generics, and APIs that require objects instead of primitives.

Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...