LinkedHashSet Methods

Question 1

Compare between Hashset , LinkedHashSet and TreeSet

Answer 1

HashSet doesn’t maintain any kind of order of its elements.
LinkedHashSet maintains the insertion order. Elements gets sorted in the same sequence in which they have been added to the Set.
TreeSet sorts the elements in ascending order.

Question 2

Declaring a LinkedHashSet

Answer 2

LinkedHashSet lhset = new LinkedHashSet();

Question 3

Adding element to LinkedHashSet

Answer 3

lhset.add(“Element”);