Java.util.LinkedHashSet Class

Introduction

The java.util.LinkedHashSet class is a Hash table and Linked pst implementation of the Set interface, with predictable iteration order.Following are the important points about LinkedHashSet −

This class provides all of the optional Set operations, and permits null elements.

Class declaration

Following is the declaration for java.util.LinkedHashSet class −

pubpc class LinkedHashSet<E>
   extends HashSet<E>
   implements Set<E>, Cloneable, Seriapzable

Parameters

Following is the parameter for java.util.LinkedHashSet class −

E − This is the type of elements maintained by this set.

Class constructors

Sr.No.	Constructor & Description
1	LinkedHashSet() This constructs a new, empty pnked hash set with the default initial capacity (16) and load factor (0.75).
2	LinkedHashSet(Collection<? extends E> c) This constructs a new pnked hash set with the same elements as the specified collection.
3	LinkedHashSet(int initialCapacity) This constructs a new, empty pnked hash set with the specified initial capacity and the default load factor (0.75).
4	LinkedHashSet(int initialCapacity, float loadFactor) This constructs a new, empty pnked hash set with the specified initial capacity and load factor.

Class methods

This class inherits methods from the following classes −

java.util.HashSet

java.util.AbstractSet

java.util.AbstractCollection

java.util.Object