Create a simple calculator application that asks a user to enter twonumbers and the operation (e.g. +, -, x, etc.) that they’d like to perform onthe numbers. Display the answer to the equation. Every equation enteredby the user should be written to a text file. Use defensive programming towrite this program in a manner that is robust and handles unexpectedevents and user inputs. Now extend your program to give the user the option to either enter twonumbers and an operator, like before, or to read all of the equations froma new txt file (the user should add the name of the txt file as an input) andprint out all of the equations together with the results. Use defensiveprogramming to ensure that the program does not crash if the file doesnot exist and that the user is prompted again to enter the name of the file. Compulsory Task 1Create a simple calculator application that asks a user to enter twonumbers and the operation (e.g. +, -, x, etc.) that they'd like to perform onthe numbers. Display the answer to the equation. Every equation enteredby the user should be written to a text file. Use defensive programming towrite this program in a manner that is robust and handles unexpectedevents and user inputs.

Answered: ration (e.g. +, -, x, etc.) that they’d…

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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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.

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.

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