Queue Implementation using LinkedList in java

By | June 15, 2020

In Previous post, Queue Implementation using an array in java We talked and learned about the Queue data structure implementation using an array.

In this post, we will learn about Queue Implementation using LinkedList in java?

In a Queue data structure, we maintain two references, front and rear. The front points the first item of queue and rear points to the last item in the Queue.
enQueue(Obj) This operation usually adds a new node after the rear and moves rear to the next node.
deQueue() This operation usually removes the front node and moves front to the next node.

Below is the complete source code:

Generic Custom Queue implementation using Linked List:


Client program which uses our custom Queue:

Output of the above program:

Queue Length::5
10 20 30 40 50
An Item deQueued ::10
Queue Length::4
20 30 40 50

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That’s all about Queue Implementation using LinkedList in java?
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