ration (e.g. +, -, x, etc.) that they’d like to perform on the numbers. Display the answer to the equation. Every equation entered by the user should be written to a text file. Use defensive programming to write this program in a manner that is robust and handles u
ration (e.g. +, -, x, etc.) that they’d like to perform on the numbers. Display the answer to the equation. Every equation entered by the user should be written to a text file. Use defensive programming to write this program in a manner that is robust and handles u
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
Related questions
Question
Create a simple calculator application that asks a user to enter two
numbers and the operation (e.g. +, -, x, etc.) that they’d like to perform on
the numbers. Display the answer to the equation. Every equation entered
by the user should be written to a text file. Use defensive
write this program in a manner that is robust and handles unexpected
events and user inputs.
![Now extend your program to give the user the option to either enter two
numbers and an operator, like before, or to read all of the equations from
a new txt file (the user should add the name of the txt file as an input) and
print out all of the equations together with the results. Use defensive
programming to ensure that the program does not crash if the file does
not exist and that the user is prompted again to enter the name of the file.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1e8e9227-5638-4c55-8f12-27a4de3256b9%2F2bcec6fb-2e51-48f2-a396-fc72d1669d63%2Ffgd0w6a_processed.png&w=3840&q=75)
Transcribed Image Text:Now extend your program to give the user the option to either enter two
numbers and an operator, like before, or to read all of the equations from
a new txt file (the user should add the name of the txt file as an input) and
print out all of the equations together with the results. Use defensive
programming to ensure that the program does not crash if the file does
not exist and that the user is prompted again to enter the name of the file.
![Compulsory Task 1
Create a simple calculator application that asks a user to enter two
numbers and the operation (e.g. +, -, x, etc.) that they'd like to perform on
the numbers. Display the answer to the equation. Every equation entered
by the user should be written to a text file. Use defensive programming to
write this program in a manner that is robust and handles unexpected
events and user inputs.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1e8e9227-5638-4c55-8f12-27a4de3256b9%2F2bcec6fb-2e51-48f2-a396-fc72d1669d63%2Fqy9kxjc_processed.png&w=3840&q=75)
Transcribed Image Text:Compulsory Task 1
Create a simple calculator application that asks a user to enter two
numbers and the operation (e.g. +, -, x, etc.) that they'd like to perform on
the numbers. Display the answer to the equation. Every equation entered
by the user should be written to a text file. Use defensive programming to
write this program in a manner that is robust and handles unexpected
events and user inputs.
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