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
Expert Solution & Answer
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Chapter 15.3, Problem 18SCP

Explanation of Solution

Precondition of the iterator “remove” method:

  • Iterator is used to access data in the collections without relieving how data stored in the data structure.
  • The “remove” method is used to delete the last element returned by the iterator...

Explanation of Solution

Iterator enforce the precondition:

  • The precondition of the iterator “remove” method check the condition before enters into the statement, if the condition is true, it executes the loop otherwise, throw an exception to the client.
  • The precondition is enforced by a “Boolean” flag in the iterator whose value is changed on every call to “next” or “remove” method...

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