LinkedHashSet()

public LinkedHashSet()

Constructs a new, empty linked hash set with the default initial capacity (16) and load factor (0.75).

import java.util.*;

class LinkedHashSetConstructor1{
 public static void main(String args[]){
  LinkedHashSet<Integer> lnkHashSet;
  HashSet<Integer> hashSet;
  
  lnkHashSet = new LinkedHashSet<> ();
  hashSet = new HashSet<> ();
  
  /* Add Elements to lnkHashSet */
  lnkHashSet.add(10);
  lnkHashSet.add(50);
  lnkHashSet.add(-33);
  lnkHashSet.add(987);
  lnkHashSet.add(1);
  lnkHashSet.add(-76);
  
  /* Add Elements to hashSet */
  hashSet.add(10);
  hashSet.add(50);
  hashSet.add(-33);
  hashSet.add(987);
  hashSet.add(1);
  hashSet.add(-76);
  
  System.out.println("Elements in lnkHashSet");
  System.out.println(lnkHashSet);
  
  System.out.println("Elements in hashSet");
  System.out.println(hashSet);
 }
}

Output

Elements in lnkHashSet
[10, 50, -33, 987, 1, -76]
Elements in hashSet
[-76, 1, 987, 50, 10, -33]

As You observe the output, Elements in LinkedHashSet are in the order they inserted, where as HashSet is not.

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