Given the following specifications of a front operation for queue Item type front Function: Queue is not empty. Precondition: Queue is not changed. a. Write this operation as client code, using operations from the QueueType class. b. Write this function a new member function of the QueueType class.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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Given the following specifications of a front operation for queue

Item type front

Function: Queue is not empty.

Precondition: Queue is not changed.

a. Write this operation as client code, using operations from the QueueType class.

b. Write this function a new member function of the QueueType class.

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