![]() Displaying elements of the Queue along with the position of front and rear.Note that this does not mean simply displaying the contents of the underlying array. If rear!= size-1, then the new value can be inserted as the rear can be incremented further using a mod(size).Ä«elow given is the example showing the implementation of Circular Queue in the Java program: java program (Listing 4.4) that displays the contents of the queue.The queue is not full if the front!= 0 and rear = max-1, which means there are positions at the starting of the queue which are empty, so insertions can take place.The queue is full if front = rear+1, which means if, after so many deletions, the front is at position 3 of the queue and rear after insertions in a circular manner is at position 2, the list is full and no more insertions can take place.So the queue is full and no insertion can take place. In the Circular queue, the last position is connected to the first position making a circle. A circular queue is a linear data structure and the operations are performed in a FIFO (First In First Out) manner just like the simple Queue. The queue is full if front = 0 and rear = size -1, which means that the front is pointing to the first position and the rear at the last. The following article provides an outline for Circular queue Java.Priority queues follow FIFO (First in First Out), but the elements are arranged in. Priority Queues are special type of queues in which the elements are arranged according to the priority associated with them. ![]() The following scenarios need to be kept in mind while working in the circular queue: Using Java programming language, both Minimum Priority Queue and Maximum Priority Queue were implemented (using heaps).
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