The collection classes
The collection framework has the following classes for all occasions:
List: This is an ordered collection that supports indexed access to elements and allows duplicate elements
Set: This is a collection of elements in which each element can occur only once
Queue: This is a collection that can be manipulated at both ends
Map: This is a collection of key-value pairs where each element is accessible by a unique key
All of them define their own specific way to add or remove elements from collections. Let's discuss each of them.
List class implements the Iterable interface and intensively uses the indexed order to iterate over elements in the collection. The
List class can be of a fixed or variable length. A fixed-length list ...