C++ STL vs Java Collections Framework Last Updated : 27 Nov, 2022 Comments Improve Suggest changes Like Article Like Report Java and C++ provide their different functionalities and their use cases. When it comes to Data structures and Algorithms Java has a special framework named Java collection framework and C++ provides a library called STL.So let's have a look at what are the different functions, complexities, and what are similarities between both of these. Java Collection Framework Java collection provides a framework to store and handle the group of objects and contains an interface named an iterable interface which provides the iterator to iterate through all the collections. A collection is an object that represents a group of objects (such as the classic Vector class). A collections framework is a unified architecture for representing and manipulating collection. STL in C++ The Standard Template Library (STL) is a set of C++ template classes to provide common programming data structures and functions such as lists, stacks, arrays, etc. It is a library of container classes, algorithms, and iterators. It is a generalized library and so, its components are parameterized. STL has 4 components: AlgorithmsContainersFunctionsIterators C++ provides well-designed STLs, whereas Java has Containers. So have a look at what they both contain. Similarities and Differences Between Containers in STL and the Collection interface in the java collection framework ParametersContainers in STL Collection interface in java collection framework List list<data-type> li; ArrayList<data-type> arr=new ArrayList<data-type>() LinkedList<data-type>LL=new LinkedList<data-type>() Vectorvector<data-type> v;Vector<data-type> v =new Vector<data-type>()Stackstack<data-type> s;Stack<data-type> s = new Stack<data-type>(); Queuequeue<data-type>q; Queue<data-type> q = new LinkedList<>();Dequeuedeque<data-type> deque;Deque<data-type>d = new ArrayDeque<data-type>();PriorityQueue priority_queue<data-type> pq;PriorityQueue<data-type> pq=new PriorityQueue<data-type>(); Setset<data-type> s;Set<data-type> set1 = new HashSet<data-type>(); Set<data-type> set2 = new LinkedHashSet<data-type>(); Set<data-type> set3 = new TreeSet<data-type>(); Mapmap<data-type1,data-type2> mp; Map<data-type1, data-type2> map= new HashMap<data-type1, data-type2>(); C++ Standard Template Library (STL) vs the Java Collections Framework (JCF)STLJava Collections Framework (JCF)We can pass functions as parameters in C++. Not allowed in Java.Interfaces do not exist in C++.Java depends on interfaces.In STL, containers can contain either objects or objects of primitive types and many algorithms operate on either containers or arraysIn Java, containers contain only objects, and algorithms must be defined separately for containers and for arrays.The algorithms are independent of the container on which they operate in STL.The algorithms are organized by the container in java.STL includes performance as part of the interface requirements.This is not normally the case for java collections.In STL collections, it can have pointers to objects or the objects themselves.In Java collections, it can only contain pointers to objects.STL uses value semantics so that assignment copies a collection. Java uses reference semantics and assignment simply assigns a referenceIterators in STL have values that can be compared.In java, iterators do not contain values that can be compared.STL has a hierarchy of iterators which different capabilities and provides random access to container elements.Java does not provide random access iterators. It only provides Iterator and ListIterator. The STL framework includes a memory allocation model and STL programmers need to be aware of dealing with memory allocations.The JCF does not address either of these concerns. Those are the major differences between STL and the java collection framework. In terms of using it in competitive programming, one can use any of them as per their convenience as it can make code look less complex and reduce your time to complete a question. Comment More infoAdvertise with us Next Article C++ STL vs Java Collections Framework D dhruvishavaghani Follow Improve Article Tags : Java Difference Between C++ Practice Tags : CPPJava Similar Reads Why We Need Collection Framework in Java? A framework is a set of classes and interfaces which provide a ready-made architecture. In order to implement a new feature or a class, there is no need to define a framework. However, an optimal object-oriented design always includes a framework with a collection of classes such that all the classe 3 min read Iterator vs Collection in Java Iterator and Collection, both has helped and comforted the programmers at many a times. But their usage and application has a very wide difference. 1. Iterator Declaration public interface Iterator Type Parameters: E - the type of elements returned by this iteratorIterators are used in Collection fr 3 min read Collections Class in Java Collections class in Java is one of the utility classes in the Java Collections Framework. The java.util package contains the Collections class in Java. The Java Collections class is used with the static methods that operate on the collections or return the collection. All the methods of this class 13 min read Collections in Java Any group of individual objects that are represented as a single unit is known as a Java Collection of Objects. In Java, a separate framework named the "Collection Framework" has been defined in JDK 1.2 which holds all the Java Collection Classes and Interface in it. In Java, the Collection interfac 15+ min read Collection vs Collections in Java with Example Collection: Collection is a interface present in java.util package. It is used to represent a group of individual objects as a single unit. It is similar to the container in the C++ language. The collection is considered as the root interface of the collection framework. It provides several classes 3 min read Java Collection Tutorial Java Collection Framework is unlikely any group of individual objects which are represented as a single unit be it of any type is known as the collection of objects. Earlier in Java, there was no such thing defined which holds true for it so there arises a need in the next versions of any such conce 15+ min read Non-generic Vs Generic Collection in Java We will be discussing differences later prior let us understand what is generic Collection and non-generic Collection, and most importantly dealing with the implementation part as during implementation one can only really get the real understanding of the concept, henceforth the differences between 5 min read Java Collections Interview Questions and Answers Java Collection Framework was introduced in JDK 1.2 which contains all the collection classes and interfaces. Java Collection is a framework that provides a mechanism to store and manipulate the collection of objects. It allows developers to access prepackaged data structures and algorithms for mani 15+ min read Collection Interface in Java The Collection interface in Java is a core member of the Java Collections Framework located in the java.util package. It is one of the root interfaces of the Java Collection Hierarchy. The Collection interface is not directly implemented by any class. Instead, it is implemented indirectly through it 6 min read How to Learn Java Collections - A Complete Guide In the real world, a collection by definition is a group of articles that have similar properties and attributes. Since Java is an Object-Oriented Language it mimics the real world. In Java, a Collection is a group of multiple objects put together into a single unit. Java Collections is a very vast 15+ min read Like