7. What is output by the following code section? QueueInterface aQueue = new QueueReference Based(); int numl, num2; for (int i = 1; i <= 5; i++) { aQueue.enqueue(i); } // end for for (int i = 1; i <= 5; i++) { numl= (Integer) aQueue.dequeue (); num2 = (Integer) aQueue.dequeue (); aQueue.enqueue (numl + num2); aQueue.enqueue (num2 numl); } // end for while (!aQueue.isEmpty()) { System.out.print (aQueue.dequeue () + " "); } // end for

7. What is output by the following code section? QueueInterface aQueue = new QueueReference Based(); int numl, num2; for (int i = 1; i <= 5; i++) { aQueue.enqueue(i); } // end for for (int i = 1; i <= 5; i++) { numl= (Integer) aQueue.dequeue (); num2 = (Integer) aQueue.dequeue (); aQueue.enqueue (numl + num2); aQueue.enqueue (num2 numl); } // end for while (!aQueue.isEmpty()) { System.out.print (aQueue.dequeue () + " "); } // end for

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Concept of memory addresses in pointers

The concept of pointers in high-level languages was introduced in C programming. Pointers are simply the variables that are used to store memory addresses of another variable. These special variables are generally used in the languages such as C Programming and C++ Programming, where it allows the programmer to work more deeply with memory and its addresses.

Question

7. What is output by the following code section?
QueueInterface aQueue = new QueueReference Based();
int numl, num2;
for (int i = 1; i <= 5; i++) {
aQueue.enqueue(i);
} // end for
for (int i = 1; i <= 5; i++) {
numl = (Integer) aQueue.dequeue ();
num2 (Integer) aQueue.dequeue ();
aQueue.enqueue (numl + num2);
aQueue.enqueue (num2 - numl);
} // end for
while (!aQueue.isEmpty()) {
System.out.print (aQueue.dequeue () +
} // end for

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Step 1: Queue Initialization and Enqueuing:

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Step 2: Processing Numbers and Re-enqueuing:

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Step 3: Printing Processed Results:

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Step 4: Overall Outcome:

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