List in Java provides the facility to maintain the ordered collection. It contains the index-based methods to insert, update, delete and search the elements. … The implementation classes of List interface are ArrayList, LinkedList, Stack and Vector. The ArrayList and LinkedList are widely used in Java programming.

What is the interface in Java?

An interface in Java is a blueprint of a class. It has static constants and abstract methods. … There can be only abstract methods in the Java interface, not method body. It is used to achieve abstraction and multiple inheritance in Java.

Is ArrayList an interface?

List is a Java interface that describes a sequential collection of objects. ArrayList is a class that describes an array-based implementation of the List Java interface.