Difference Betwixt Treemap Together With Treeset Inwards Java

Difference betwixt TreeSet too TreeMap inwards Java
Main Difference betwixt TreeMap too TreeSet is that TreeMap is an implementation of Map interface acre TreeSet is an implementation of Set interface. There are approximately similarities betwixt both TreeMap too TreeSet too few differences equally well. In this Java tutorial, nosotros volition kickoff come across similarities betwixt TreeMap too TreeSet too than you lot volition larn approximately differences betwixt TreeMap too TreeSet inwards Java. Key betoken to shout out back almost TreeMap too TreeSet is that they purpose compareTo() or compare() method to compare object, So if uses puts a String object inwards TreeSet of Integers, add() method volition throw ClassCastException at runtime prior to Java 5, amongst Java v you lot tin sack purpose Generics to avoid this happening yesteryear declaring TreeMap too TreeSet amongst parametrized version. If you lot desire to master copy Java Collection framework yesteryear heart, you lot tin sack come across Java Generics too Collection majority yesteryear Maurice Naftaline, ane of the best operate on Java Collections framework.

Similarities betwixt TreeMap too TreeSet inwards Java

Here is a listing of similarities betwixt TreeMap too TreeSet inwards Java:

1) Both TreeMap too TreeSet are sorted information structure, which way they move yesteryear away along in that place chemical gene inwards predefined Sorted order. Sorting social club tin sack endure natural sorting social club defined yesteryear Comparable interface or custom sorting Order defined yesteryear Comparator interface. Both TreeMap too TreeSet has overloaded constructor which convey a Comparator, if provided all elements within TreeSet or TreeMap volition endure compared too Sorted using this Comparator.

2) Both TreeSet too TreeMap implements base of operations interfaces e.g. TreeSet implements Collection too Set interface so that they tin sack endure passed to method where a Collection is expected too TreeMap implements java.util.Map interface, which way you lot tin sack move yesteryear it when a Map is expected.


3) TreeSet is practically implemented using TreeMap instance, similar to HashSet which is internally backed by HashMap instance. See my post Internal Implementation of HashSet to larn more. 

4) Both TreeMap too TreeSet are non synchronized Collection, thence tin sack non endure shared betwixt multiple threads. You tin sack brand both TreeSet too TreeMap synchronized yesteryear wrapping them into Synchronized collection yesteryear calling Collections.synchroinzedMap() method.

5) Iterator returned yesteryear TreeMap too TreeSet are fail-fast, way they volition throw ConcurrentModificationException when TreeMap or TreeSet is modified structurally ane time Iterator is created. this fail-fast behavior is non guaranteed only industrial plant inwards best effort.

6) Both TreeMap too TreeSet are slower than in that place Hash counter business office similar HashSet too HashMap too instead of providing constant fourth dimension performance for add, take away too acquire functioning they furnish performance inwards O(log(n)) order.

TreeSet vs TreeMap inwards Java

Now let's come across approximately differences betwixt TreeSet vs TreeMap inwards Java:

1) Major divergence betwixt TreeSet too TreeMap is that TreeSet implements Set interface acre TreeMap implements Map interface inwards Java.

2) Second divergence betwixt TreeMap too TreeSet is the way they shop objects. TreeSet stores entirely ane object acre TreeMap uses 2 objects called fundamental too Value. Objects inwards TreeSet are sorted acre keys inwards TreeMap stay inwards sorted Order.

3) Third divergence betwixt TreeSet too TreeMap is that, old implements NavigableSet while after implements NavigableMap in Java.

4) Fourth divergence is that duplicate objects are non allowed inwards TreeSet only duplicates values are allowed inwards TreeMap.

That's all on difference betwixt TreeSet too TreeMap inwards Java. If you lot detect whatever other pregnant divergence betwixt TreeMap too TreeSet so delight post service equally comment.

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