#collection interface

Set interface doesn’t provide any additional method, as a result, implementation classes use only collection interface methods. HashSet is an implementing class of Set interface and it represents Hash Table as its underlying data structure. It is a collection of unordered unique elements that don’t allow duplicates. It also doesn’t preserve insertion order as it uses hash code to store an…

Java : Collection Framework Hierarchy

All the classes and interfaces of the collection framework are in java.util package. This hierarchy for the collection framework specifically mentioned the class and interface with respect to each type.

Iterable Interface

The Iterable interface is the root interface for all the collection classes because the Collection interface extends the Iterable interface, therefore, all the subclasses of…

Java : Collection Framework Hierarchy

All the classes and interfaces of the collection framework are in java.util package. This hierarchy for the collection framework specifically mentioned the class and interface with respect to each type.

Iterable Interface

The Iterable interface is the root interface for all the collection classes because the Collection interface extends the Iterable interface, therefore, all the subclasses of…