Elements in Queue will be added from the rear end while removed from the front. it orders the elements in First In First Out manner. Queue Interface: in Java follows a FIFO approach i.e.The Set interface is implemented by various classes such as HashSet, TreeSetand LinkedHashSet. It is majorly used as a mathematical set abstraction model. Since it doesn’t define an order for the elements, the index-based search is not supported. Set Interface: refers to a collection class that cannot contain duplicate elements.The List interface is implemented by various classes such as ArrayList, LinkedList, Vector, etc. It supports the index-based search, but elements can be easily inserted irrespective of the position. List Interface: is an extended form of an array that contains ordered elements and may include duplicates.Public interface Collectionextends Iterable Collection Interface: is the root of the Java Collection framework and most of the collections in Java are inherited from this interface.Describe the Collection hierarchy in Java.Ĥ. List down the primary interfaces provided by Java Collections Framework?īelow are the major interfaces provided by the Collection Framework: The collection framework includes the following:Īll these classes and interfaces support various operations such as Searching, Sorting, Insertion, Manipulation, and Deletion which makes the data manipulation really easy and quick.ģ. It permits the developers to access prepackaged data structures as well as algorithms to manipulate data. The Java Collection framework provides an architecture to store and manage a group of objects. What do you understand by Collection Framework in Java? The Collection Framework in Java allows the developers to customize the primitive collection types as per their requirements.Ģ. The classes in Collection Framework can effortlessly mix with other types which results in increasing the code reusability. The code developed with the collection framework is easy to maintain as it supports data consistency and interoperability within the implementation. The collection framework provides highly effective and efficient data structures that result in enhancing the speed and accuracy of a program. What are the advantages of the Collection Framework in Java?īelow table contains the major advantages of the Java Collection Framework: Feature Generic – Java Collections Interview Questions 1. The questions in this article have been divided into the following sections: Through the medium of this article, I will share the Top 50 Java Collections Interview Questions and Answers that will definitely help you in clearing your interview with flying colors. If you are an aspiring Java Developer, it is very important for you to have a strong knowledge of these core concepts before you appear for an interview. Collection Framework is one of the most important pillars that support the fundamental concepts of the Java programming language.
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