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 14.3, Problem 18SCP

a.

Program Plan Intro

Find output for the given Queue

Program plan:

  • Import necessary packages.
  • Create a class “StackQu”,
    • Define the method “mystery2()” that accepts “Queue”,
      • Calculate the size of “Queue”.
      • Execute loop till queue size,
        • Assign the integer removed from the “Queue”.
        • Check whether the integer is positive,
          • If it is true, add negative value of that integer into the “Queue”.
      • Print the “Queue” element.
    • Define the method “main()”,
      • Create object for “LinkedList”.
      • Call the “add()” method of queue to add the elements “1”, “-2”, “3”, “-4”, “5” and “-6” into the “Queue” one by one.
      • Call the method “mystery3()” with “Queue” as a parameter.

b.

Program Plan Intro

Find output for the given Queue

Program plan:

  • Import necessary packages.
  • Create a class “StackQu”,
    • Define the method “mystery2()” that accepts “Queue”,
      • Calculate the size of “Queue”.
      • Execute loop till queue size,
        • Assign the integer removed from the “Queue”.
        • Check whether the integer is positive,
          • If it is true, add negative value of that integer into the “Queue”.
      • Print the “Queue” element.
    • Define the method “main()”,
      • Create object for “Queue”.
      • Call the “add()” method of queue to add the elements “42”, “-3”, “4”, “-15”, “-9” and “71” into the “Queue” one by one.
      • Call the method “mystery3()” with “Queue” as a parameter.

c.

Program Plan Intro

Find output for the given Queue

Program plan:

  • Import necessary packages.
  • Create a class “StackQu”,
    • Define the method “mystery2()” that accepts “Queue”,
      • Calculate the size of “Queue”.
      • Execute loop till queue size,
        • Assign the integer removed from the “Queue”.
        • Check whether the integer is positive,
          • If it is true, add negative value of that integer into the “Queue”.
      • Print the “Queue” element.
    • Define the method “main()”,
      • Create object for “Queue”.
      • Call the “add()” method of queue to add the elements “-30”, “-20”, “10”, “60”, “50”, “-40”, “-3” and “0” into the “Queue” one by one.
      • Call the method “mystery3()” with “Queue” as a parameter.

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