Creating an ArrayList Object

Let’s practically use an ArrayList Object in our code. The ArrayList is a class in Java and to use a class’s functionality we have to instantiate it i.e. to construct its object.
To construct an object of a class we use a constructor. Before we jump to the constructor part let’s discuss a bit about the wrapper classes.

Wrapper classes

In Java, we cannot directly instantiate an ArrayList of the primitive data types like int, char, boolean. The reason for this is that primitive data types are not objects. For this purpose, Java has inbuilt wrapper classes which just wrap these primitive data types in a class. Below given is the list of inbuilt ...