Answered: incorrect output. not executable the…

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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incorrect output. not executable the way it was answered

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Step 1: Algorithm for verifies a PIN entered by a user against the PIN associated with a debit card:

Create a CashRegister object.
Create a DebitCard object with a predefined PIN (e.g., 1234).
Prompt the user to enter a PIN.
Read and store the entered PIN.
Call the verifyCardPIN method of the CashRegister object, passing the DebitCard object and the entered PIN as arguments.
Inside the verifyCardPIN method: a. Retrieve the PIN associated with the DebitCard object. b. Compare the entered PIN with the stored PIN. c. If they match, return true (transaction succeeded). d. If they don't match, return false (transaction failed).
In the main method, check the value returned by verifyCardPIN.
If true, print "Transaction succeeded!" to indicate a successful transaction.
If false, print "Transaction failed." to indicate an unsuccessful transaction.

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