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  1. www.w3schools.com › java › java_arraylistJava ArrayList - W3Schools

    The ArrayList class is a resizable array, which can be found in the java.util package. The difference between a built-in array and an ArrayList in Java, is that the size of an array cannot be modified (if you want to add or remove elements to/from an array, you have to create a new one).

  2. www.javatpoint.com › collections-in-javaCollections in Java - javatpoint

    • Iterable Interface. The Iterable interface is the root interface for all the collection classes. The Collection interface extends the Iterable interface and therefore all the subclasses of Collection interface also implement the Iterable interface.
    • Collection Interface. The Collection interface is the interface which is implemented by all the classes in the collection framework. It declares the methods that every collection will have.
    • List Interface. List interface is the child interface of Collection interface. It inhibits a list type data structure in which we can store the ordered collection of objects.
    • ArrayList. The ArrayList class implements the List interface. It uses a dynamic array to store the duplicate element of different data types. The ArrayList class maintains the insertion order and is non-synchronized.

  3. www.geeksforgeeks.org › collections-in-java-2Collections in Java - GeeksforGeeks

    • 9 min
    • Iterable Interface: This is the root interface for the entire collection framework. The collection interface extends the iterable interface. Therefore, inherently, all the interfaces and classes implement this interface.
    • Collection Interface: This interface extends the iterable interface and is implemented by all the classes in the collection framework. This interface contains all the basic methods which every collection has like adding the data into the collection, removing the data, clearing the data, etc.
    • List Interface: This is a child interface of the collection interface. This interface is dedicated to the data of the list type in which we can store all the ordered collection of the objects.
    • Queue Interface: As the name suggests, a queue interface maintains the FIFO(First In First Out) order similar to a real-world queue line. This interface is dedicated to storing all the elements where the order of the elements matter.

  4. www.w3schools360.com › collection-tutorial-javaCollection tutorial java - W3schools

    Collection framework: A collection framework is a unified architecture or a set of classes and interfaces for representing and manipulating collections. i.e. collection framework is used to store, retrieve and manipulate collections.

  5. www.w3resource.com › java-collectionsJava Collection Framework - w3resource

    Aug 19, 2022 · The Collections Framework is a sophisticated hierarchy of interfaces and classes that provide state-of-the-art technology for managing groups of objects. You can perform following activity using Java collection framework, Add objects to collection. Remove objects from collection. Search for an object in collection.

  6. www.programiz.com › java-programming › collectionsJava Collections Framework - Programiz

    The Java collections framework provides a set of interfaces and classes to implement various data structures and algorithms. For example, the LinkedList class of the collections framework provides the implementation of the doubly-linked list data structure.

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  8. www.w3resource.com › java-exercises › collectionJava Collection Exercises - w3resource

    Mar 12, 2024 · Java Collection refers to a framework provided by Java to store and manipulate groups of objects. It offers a set of interfaces (like List, Set, Queue, etc.) and classes (like ArrayList, HashSet, PriorityQueue, etc.) that provide different ways to organize and work with collections of elements.

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