Overview: In Java, we have two main categories of types: primitives and objects. However, there are situations where primitives need to be treated as object, such as when working with collections.

For each data type, Java provides a predefined class called Wrapper Class. Wrapper classes wrap primitive data type value into a class object. It is this wrapper class that helps to make Java ...

->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 ...