Explain Abstract Data Type Of Queue

The queue abstract data type adt follows the basic design of the stack abstract data type. There are four types of queue. Queue as an adt abstract data type the meaning of an abstract data type clearly says that for a data structure to be abstract it should have the below mentioned characteristics.

The first person in line will be served first while the last person last.

Explain abstract data type of queue. A queue is sometimes generalized as a structure where insertion enqueue person entering the line. Queue as abstract data type adt enqueue dequeue implementation. The programs responsibility is to allocate memory for storing the data. Queues are common in computer programs where they are implemented as data structures coupled with access routines as an abstract data structure or in object oriented languages as classes.

It has a front and rear. An abstract data type is a system described in terms of its behavior without regard to its implementation. Queue is also an abstract data type or a linear data structure just like stack data structure in which the first element is inserted from one end called the rear also called tail and the removal of existing element takes place from the other end called as front also called head. Common implementations are circular buffers and linked lists.

This makes queue as fifo first in first out data structure which means that element inserted first will be removed first. We return to the discussion of these adts later in this chapter. The abstract datatype is special kind of datatype whose behavior is defined by a set of values and set of operations. First there should be a particular way in which components are related to each other.

The data type is basically a type of data that can be used in different computer program. Each node contains a void pointer to the data and the link pointer to the next element in the queue. A common abstract data type is a queue. A queue is a first in first out fifo structure or in the other sense a last in last out lilo structure.

It signifies the type like integer float etc the space like integer will take 4 bytes character will take 1 byte of space etc. A real life example of a queue is a line of people waiting for some event. The data structures vector list and deque implement the adts vector list and deque respectively. A queue is an example of a linear data structure or more abstractly a sequential collection.

Queue is an abstract data type which can be implemented as a linear or circular list. Dequeue double ended queue 1.