Array vs arraylist vs linkedlist vs hashset

TreeSet class implements NavigableSet interface. Side by Side Comparison вЂ“ TreeSet vs HashSet in Tabular Form Similarities Between TreeSet and HashSetДҐ. Both TreeSet and HashSet only store unique elements. The key difference between TreeSet and HashSet is that TreeSet stores the elements in ascending order while the HashSet does not store the elements in ascending order. HashSet is a class that implements the Set interface and it is used to store unique elements using the Hashing mechanism. TreeSet is a class that implements the Set interface and it is used to store unique elements in ascending order. The TreeSet and HashSet are two class in the Collection hierarchy and both implements the Set interface. Set is an interface that extends the Collection interface. The base interface is the Collection interface.

There is aВ number of interfaces and classes in the collection hierarchy. Collections support operations such as adding elements and deleting elements. Programming languages such as Java supports Collections that are used to store data dynamically. Therefore, arrays are not dynamic and cannot change the size of the array once it is declared. If there is array declared for six elements, then it cannot be used to store ten elements. It is a data structure that is used to store multiple elements of the same data type. Most programming languages support Arrays.

Array vs arraylist vs linkedlist vs hashset