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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.

Convert LinkedHashSet to Object array example

With this example we are going to demonstrate how to convert a LinkedHashSet to an Object array. In short, to convert a LinkedHashSet to an Object array you should:

  • Create a new LinkedHashSet.
  • Populate the set with elements, using the add(E e) API method of LinkedHashSet.
  • Invoke toArray() method of LinkedHashSet, that returns an array containing all of the elements in this set. The method allocates a new array. The caller is thus free to modify the returned array. The length of the returned array is equal to the number of elements returned by the set iterator.

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

package com.javacodegeeks.snippets.core;
 
import java.util.LinkedHashSet;
 
public class LinkedHashSetToArray {
 
  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");

    // Object[] toArray() method returns an array containing all of the elements in this set
    Object[] objArray = linkedHashSet.toArray();
 
    System.out.println("Elements in Array :");
    for(int i=0; i < objArray.length ; i++)

System.out.println(objArray[i]);
 
  }
}

Output:

Elements in Array :
element_1
element_2
element_3

 
This was an example of how to convert a LinkedHashSet to an Object array in Java.

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