Exercise 4: Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. quantity = "!" or price “8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enton filonamo 1 ondon1 tut

Exercise 4: Write a python program that reads from a text file whose name is provided by the user, a list of a coffee shop products ordered by a customer (a sample input file is shown below). Each line contains item name, quantity and price (in biza) per product. Compute and display the total payment amount (in riyals) for each product as well as the total bill. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. quantity = "!" or price “8&0"), in which case RuntimeError exception should be raised and the processing stops. Note: Make sure you close any open file even if an error occurs. Enton filonamo 1 ondon1 tut

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter8: Arrays And Strings

Section: Chapter Questions

Problem 20PE

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Exercise 3: A company stores payment information for their employee working on a project and paid on a project basis, in a text file whose name is entered through keyboard (see a sample input file below). The first line of the file indicates the number of employees and each subsequent line corresponds to information related to an employee payment (employee name, number of hours worked and his/her hourly wage). Write a python program that reads such a file and displays the employees' names, their hours worked, and their salaries. Finally, it displays the total payment. Your program should consider the following erroneous cases: • The file does not open/exist The format of the data in the file is incorrect (e.g. hours ="1-" or salary = "unkown") in which case a RuntimeError exception should be raised and the processing should continue Enter input filename: employees.txt Employee Hours Salary 520 Badria Al-Harthi Youcef Al-Busaidi File contents invalid. Majid Al-Sinani File contents…
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Python
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