Which Of The Following Classes Directly Implement Set Interface

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    0
    2022-12-28T17:47:02+05:30

    Which Of The Following Classes Directly Implement Set Interface

    In programming, interfaces are a powerful tool. They allow one class to be used by another without having to do any of the work of implementing it. This can be a huge time-saver, especially when you need to create multiple versions of a program with different functionality. In this article, we will take a look at three classes that use interfaces and show you how you can use them in your own programming projects.

    Factory

    Factory classes are a great way to create objects in Java. They implement the Set interface which makes them perfect for working with sets of data. There are many factory classes available, but some of the most popular ones include the ArrayListFactory and HashMapFactory classes.

    ArrayListFactory is a class that creates an ArrayList object. It takes two arguments: a set of class names and an integer value that specifies how many instances of each class to create. The example below creates an ArrayList object containing three instances of the String class.

    String[] strings = new String[3]; ArrayList arraylist = ArrayListFactory.newArrayList(strings);

    HashMapFactory is a class that creates a HashMap object. It takes two arguments: a set of class names and an integer value that specifies how many instances of each class to create. The example below creates a HashMap object containing three instances of the String class.

    HashMap hashmap = HashMapFactory.newHashMap(); hashmap.put(“string1”, “Hello World”); hashmap.put(“string2”, “World!”); hashmap.put(“string3”, “!”);

    Property

    The Set class implements the Set interface. It enables you to create and manipulate sets of objects.

    Interface

    The java.util.Set interface provides methods for adding, deleting, and checking whether a given element is present in the set.

    There are three direct subclasses of Set that provide specific functionality: the HashSet class enables you to create sets using hash codes, the LinkedHashMap class enables you to create sets based on linked lists of keys, and the ConcurrentHashMap class enables you to create sets that can be updated simultaneously by multiple threads.

    0
    2023-02-03T17:50:37+05:30

    😃Are you wondering which of the following classes directly implement Set interface? Then you are in the right place.

    First and foremost, let’s clarify what a Set interface is. A Set interface is an interface that provides a collection of objects that are unordered and contain no duplicate elements. Set interfaces are used to store and manipulate collections of data, such as strings, numbers, or objects.

    Now, let’s take a look at the following classes that directly implement the Set interface:

    1. HashSet

    HashSet is an implementation of the Set interface that uses hash-table for storage. It stores elements in an unordered manner and does not allow duplicate elements.

    2. TreeSet

    TreeSet is a sorted implementation of the Set interface that uses a tree for storage. It stores elements in an ascending order, and does not allow duplicate elements.

    3. LinkedHashSet

    LinkedHashSet is an implementation of the Set interface that uses a linked list for storage. It stores elements in the order in which they were added, and does not allow duplicate elements.

    4. EnumSet

    EnumSet is a specialized implementation of the Set interface designed to work with Enum objects. It stores elements in an unordered manner and does not allow duplicate elements.

    These are the four classes that directly implement the Set interface. Each of them has its own strengths and weaknesses, so make sure to choose the one that best meets your needs.

    Now that you know which of the following classes directly implement Set interface, you can go ahead and create your own collection of data! Good luck! 🤞

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