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Queues meaning3/6/2024 The Queue interface promotes different methods like insert, delete, peek, etc. In the Java queue, there are many methods that are used very commonly. The interfaces that are used to implement the functionalities of the queue are given as follows: The Java interfaces are also used in the implementation of the Java queue. Interfaces used in implementation of Queue The classes that are used to implement the functionalities of the queue are given as follows: Implementation of Queue Classes used in implementation of Queue In Blocking queues, if any work similar to null values is tried, then the NullPointerException is also thrown. ![]() Blocking Queues do not support null elements.The Blocking Queues are used to implement the producer-consumer queries. Blocking Queues are also one of the types of queues that are also thread-safe.The deque is also considered thread-safe.The Deque or (double-ended queue) is also a type of queue that carries the inclusion and deletion of elements from both ends.The Queues that are a part of the java.util package are known as the Unbounded queues and bounded queues are the queues that are present in package. There are two types of queues, Unbounded queues and Bounded queues.Other than these two, there is a class that is, Array Blocking Queue that is used to implement the Queue interface.These classes are LinkedList and PriorityQueue. There are two different classes that are used to implement the Queue interface.The Java Queue interface gives all the rules and processes of the Collection interface like inclusion, deletion, etc. ![]() It indicates that elements are entered in the queue at the end and eliminated from the front.
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