Building Java Programs: A Back To Basics Approach (5th Edition)
Building Java Programs: A Back To Basics Approach (5th Edition)
5th Edition
ISBN: 9780135471944
Author: Stuart Reges, Marty Stepp
Publisher: PEARSON
Question
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Chapter 14, Problem 18E
Program Plan Intro

Print each half of the queue with its mirrored version

Program plan:

  • Import necessary packages.
  • Create a class “QueueHalfMirror”,
    • Define the method “mirrorHalves ()” that accepts a queue of integers,
      • Check whether the queue is null or the size of the queue is odd,
        • If it is true, throws an exception.
      • Create stack object.
      • Calculate queue size.
      • Execute over half of the queue,
        • Assign first element removed from the queue to the variable.
        • Insert that element into the stack.
        • Insert that same element into the queue.
      • Execute till stack becomes empty,
        • Transfer all the elements from stack to queue.
      • Execute over half of the queue,
        • Assign first element removed from the queue to the variable.
        • Insert that element into the stack.
        • Insert that same element into the queue.
      • Execute till stack becomes empty,
        • Transfer all the elements from stack to queue.
      • Print each half of the queue with its mirrored version.
    • Define the method “main()”,
      • Construct “LinkedList” object.
      • Add integers into the queue.
      • Print the queue of integers.
      • Call the method “mirrorHalves()” with queue as parameter.

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