Java Data structures Queues

  
Suppose you want to create a copy of a queue, Q, without destroying the original queue.
If you simply do Queue C = Q , it will not create a true copy, it just creates a second reference to Q – if Q is changed, C will also change in this case.
  
Here’s one way to do this:
1. Make two empty queues, C and T.
2. while Q is not empty do:
Dequeue Q, called this element e. Make a copy of e, call it e2.
Enqueue e in C, enqueue e2 in T.
3. While T is not empty:
Dequeue T, and enqueue the dequeued element in C
4. C is an identical copy of Q. This is called a deep copy of Q.
Basically we are dequeuing Q, copying the elements to C and keeping a temporary queue T. Then we dequeue the temporary queue T and enqueue into Q.
If we don’t do this, your oroiginal Q will be empty afterwards. Draw some pictures and see for yourself.
Write a method,
public static LinkedList<Integer> copyOfQ(LinkedList<Integer> Q)
to return a copy of an input Queue Q of Integer objects. We are crating a Queue here using JDK’s java.util.LinkedList class.
import java.util.*;
public class CopyQ{
public static LinkedList<Integer> copyOfQ(LinkedList<Integer> Q){
//Your Code below
}
public static void main(String[] args){
LinkedList<Integer> Q= new LinkedList<>();
for (int i=0; i<10; i++){
Q.add(new Integer(i+1));
}
LinkedList<Integer> C= copyOfQ(Q);
System.out.println(“Checking Original Queue:”);
for(Integer e:Q){
System.out.print(e+” “);
}
System.out.println();
System.out.println(“Checking Copy:”);
for(Integer e:C){
System.out.print(e+” “);
}
System.out.println();
}
}

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more