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About Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

LinkedHashSet Iterator example

This is an example of how to obtain a LinkedHashSet Iterator. The LinkedHashSet API provides us with methods for such operations. Obtaining a LinkedHashSet Iterator implies that you should:

  • Create a new LinkedHashSet.
  • Populate the set with elements, using the add(E e) API method of LinkedHashSet.
  • Invoke iterator() API method of LinkedHashSet, to get an Iterator over the elements in this set. The elements are returned in no particular order.
  • Iterate over the set’s elements with hasNext() and next() API methods of Iterator.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;

import java.util.Iterator;
import java.util.LinkedHashSet;
 
public class LinkedHashSetIterator {
 
  public static void main(String[] args) {
 
    // Create a LinkedHashSet and populate it with elements
    LinkedHashSet linkedHashSet = new LinkedHashSet();
    linkedHashSet.add("element_1");
    linkedHashSet.add("element_2");
    linkedHashSet.add("element_3");

    // To get the Iterator use the iterator() operation
    Iterator it = linkedHashSet.iterator();
 
    System.out.println("Elements in LinkedHashSet :");
    while(it.hasNext())

System.out.println(it.next());

  }
}

Output:

Elements in LinkedHashSet :
element_1
element_2
element_3

 
This was an example of how to obtain a LinkedHashSet Iterator in Java.

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