This is a Java Program to implement a queue using array. Queue is a particular kind of abstract data type or collection in which the entities in the collection are kept in order and the principal (or only) operations on the collection are the addition of entities to the rear terminal position and removal of entities from the front terminal position. This makes queue a First-In-First-Out (FIFO) data structure.

I've implemented the queue data structures using array in java. Anything I need to change in my code? Array Implementation of Queue. Ask Question Asked 5 years, 4 months ago. Active 3 years, 1 month ago. Viewed 49k times 7. Queue implementation using arrays. Implementation of stack. A circular queue is similar to the simple queue except that, the last node is connected to the first node to make a circle. A circular queue also called as a Ring Buffer can be implemented using arrays and linked lists.Let us look at its implementation one by one. Algorithm for Insertion and deletion operation using arrays in a circular queue.

Here is the source code of the Java Program to implement a queue using array. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

Sanfoundry Global Education & Learning Series – 1000 Java Programs.

Write a C++ Menu Driven Program to implement circular queue using Arrays. Here’s simple C++ Menu Driven Program to implement circular queue using Arrays in C++ Programming Language.

What is Queue ?

Queue is also an abstract data type or a linear data structure, in which the first element is inserted from one end called REAR, and the deletion of existing element takes place from the other end called as FRONT.

This makes queue as FIFO data structure, which means that element inserted first will also be removed first.

Basic Operations : :

• enqueue() − add (store) an item to the queue.

• dequeue() − remove (access) an item from the queue.

• peek()− Gets the element at the front of the queue without removing it.

• isfull() − Checks if the queue is full.

• isempty() − Checks if the queue is empty.

Below is the source code for C++ Menu Driven Program to implement circular queue using Arrays which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94

/* C++ Menu Driven Program to implement circular queue using Arrays */ #include<iostream> { public: { rare=-1; voidpush(intx) if(front-1&&rare-1) q[++rare]=x; return; elseif(front(rare+1)%5) cout<<' Circular Queue over flow'; } q[rare]=x; { { return; elseif(frontrare) front=rare=-1; } } { if(front<=rare) for(i=front;i<=rare;i++) } { { } { } } { intch; while(1) cout<<'n1.INSERT 2.DELETE 3.DISPLAY 4.EXITnEnter ur choice'; switch(ch) case1:cout<<'enter element'; q1.push(ch);break; case2:q1.pop();break; case4:exit(0); } }

OUTPUT : :