Difference Between List and ArrayList in Java

In this post, we will understand the difference between List and ArrayList in Java.

List

• It is an Interface.

• It extends the Collection framework.

• It can’t be instantiated.

• It can be used to create a list of elements/objects.

• These objects are associated with their index numbers.

• It creates a collection of elements which are stored in a sequence.

• These elements are identified and accessed using an index.

ArrayList

• It is a class.

• It extends the ‘AbstractList’ class.

• It implements ‘List’ interface.

• It can be instantiated.

• This class is used to create a dynamic array, which would contain objects.

• It creates an array of object.

• This array can be developed dynamically.