program must, read in a selection char from a file called input.txt, • use case statements to select the price linked to the input char, • write the price corresponding to the char to a file called output.txt.

program must, read in a selection char from a file called input.txt, • use case statements to select the price linked to the input char, • write the price corresponding to the char to a file called output.txt.

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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Question

Write a program that displays the cost of
different options at a vending machine. Your
program
must,
read in a selection char from a file called
input.txt,
• use case statements to select the price
linked to the input char,
• write the price corresponding to the char to
a file called output.txt.
Table 4: Vending machine options.
Product
Selection char
Cost
Cheese naks
Doritos
Coke
a
R5.50
b
R7.50
Chappie
Tex
Bar-one
R12.00
R2.00
R8.00
R7.00
d
e
f
• If the char is not present in the file write -1

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