Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 7, Problem 5PE
Program Plan Intro
Charge account validation
Program Plan:
- • Declare a function named “readfile()”.
- ○ The function accepts a file handler “inputfileobject” as a parameter.
- ○ Create an empty list “chargeaccountlist” to hold the account number from the input file.
- ○ Use “for” to iterate through the file and fetch the charge account numbers from each line of the file.
- ○ “append()” function is used to add the fetched charge account numbers from the file to the list “chargeaccountlist”.
- ○ The function finally returns the list “chargeaccountlist”.
- • Declare a function named “checknumber()”.
- ○ The function accepts a list “chargeaccountlist” as a parameter.
- ○ Prompt the user to enter a seven digit charge account number and store in a variable “n”.
- ○ Use an “if” statement to check whether “n” is in the list “chargeaccountlist”. If the statement returns true, print the user entered charge account number is valid; otherwise, print invalid.
- • In the “main()” function,
- ○ Open the file “charge_accounts.txt” and assign to “inputfileobject”.
- ○ Call the function “readfile()” with “inputfileobject” as a parameter and assign the function return to the “chargeaccountslist”.
- ○ Call the function “checknumber()” with “chargeaccountslist” as a parameter.
- • Finally, call the “main()” to execute the program.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Celsius to Fahrenheit TableAssuming that C is a Celsius temperature, the following formula converts the temperatureto a Fahrenheit temperature (F):F =9/5C + 32Create an application that displays a table of the Celsius temperatures 0–20 andtheir Fahrenheit equivalents. The application should use a loop to display the temperaturesin a list box.
Adding Students to a Club Create an application that displays a list of student names in a ListBox. Use a second empty ListBox to represent the members of a student club. Use a button labeled Addto copy member names from the general list to the club list. Use a button labeled Remove to remove a student from the club list. Keep a running count of the number of names in the club list. The application should perform the following error-checking:• Do not permit the same person’s name to be added twice.• Avoid throwing an exception if the user clicks the Add button before having selected a student name.• Avoid a runtime error if the user clicks the Remove selected member button, without having selected a member name
In "Starting out with visual basic 8th edition programming challenge 5"
Group 2/12 Problem – Population
Create an application that predicts the approximate size of a population of organisms. The application
should use textboxes to allow the user to enter the starting number of organisms, the average daily
population increase (as a percentage), and the number of days the organisms will be left to multiply.
Use a ListBox to display the population size for each day of the simulation.
If the user clicks the Save button, save the current prediction to a file.
Group 3/7 Problem – Dice Simulator
Chapter 7 Solutions
Starting Out with Python (4th Edition)
Ch. 7.2 - What will the following code display? numbers =...Ch. 7.2 - Prob. 2CPCh. 7.2 - Prob. 3CPCh. 7.2 - Prob. 4CPCh. 7.2 - Prob. 5CPCh. 7.2 - Prob. 6CPCh. 7.2 - Prob. 7CPCh. 7.2 - Prob. 8CPCh. 7.3 - Prob. 9CPCh. 7.3 - Prob. 10CP
Ch. 7.3 - Prob. 11CPCh. 7.3 - Prob. 12CPCh. 7.3 - Prob. 13CPCh. 7.4 - What will the following code display? names =...Ch. 7.5 - Prob. 15CPCh. 7.5 - Prob. 16CPCh. 7.5 - Prob. 17CPCh. 7.5 - Prob. 18CPCh. 7.8 - Prob. 19CPCh. 7.8 - Prob. 20CPCh. 7.8 - Write a set of nested loops that display the...Ch. 7.9 - Prob. 22CPCh. 7.9 - Prob. 23CPCh. 7.9 - Prob. 24CPCh. 7.9 - Prob. 25CPCh. 7.10 - Prob. 26CPCh. 7.10 - Prob. 27CPCh. 7.10 - Prob. 28CPCh. 7.10 - Prob. 29CPCh. 7.10 - Prob. 30CPCh. 7.10 - To create a bar chart with the bar function, what...Ch. 7.10 - Assume the following statement calls the bar...Ch. 7.10 - Prob. 33CPCh. 7 - This term refers to an individual item in a list....Ch. 7 - This is a number that identifies an item in a...Ch. 7 - Prob. 3MCCh. 7 - This is the last index in a list. a. 1 b. 99 c. 0...Ch. 7 - This will happen if you try to use an index that...Ch. 7 - This function returns the length of a list. a....Ch. 7 - When the operator's left operand is a list and...Ch. 7 - This list method adds an item to the end of an...Ch. 7 - This removes an item at a specific index in a...Ch. 7 - Prob. 10MCCh. 7 - If you call the index method to locate an item in...Ch. 7 - Prob. 12MCCh. 7 - This file object method returns a list containing...Ch. 7 - Which of the following statement creates a tuple?...Ch. 7 - Prob. 1TFCh. 7 - Prob. 2TFCh. 7 - Prob. 3TFCh. 7 - Prob. 4TFCh. 7 - A file object's writelines method automatically...Ch. 7 - You can use the + operator to concatenate two...Ch. 7 - Prob. 7TFCh. 7 - You can remove an element from a tuple by calling...Ch. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - What will the following code display? values = [2,...Ch. 7 - Prob. 4SACh. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 1AWCh. 7 - Prob. 2AWCh. 7 - Prob. 3AWCh. 7 - Prob. 4AWCh. 7 - Write a function that accepts a list as an...Ch. 7 - Prob. 6AWCh. 7 - Prob. 7AWCh. 7 - Prob. 8AWCh. 7 - Total Sales Design a program that asks the user to...Ch. 7 - Prob. 2PECh. 7 - Rainfall Statistics Design a program that lets the...Ch. 7 - Prob. 4PECh. 7 - Prob. 5PECh. 7 - Larger Than n In a program, write a function that...Ch. 7 - Drivers License Exam The local driver s license...Ch. 7 - Name Search If you have downloaded the source code...Ch. 7 - Prob. 9PECh. 7 - World Series Champions If you have downloaded the...Ch. 7 - Prob. 11PECh. 7 - Prob. 12PECh. 7 - Magic 8 Ball Write a program that simulates a...Ch. 7 - Expense Pie Chart Create a text file that contains...Ch. 7 - 1994 Weekly Gas Graph In the student sample...
Knowledge Booster
Similar questions
- PYTHON PROGRAMMING There are six quizzes with grades 0 through 10. The lowest grade will be dropped 1) __init__() should drop the lowest grade 2) average() calculate the average of the remining five grades 3) display() display the list with five remaining grades and the average Write codes to import Quizzes class. Use a loop to request six grades in floats. Call display() to print the grades and the average. Output Example: (attached)arrow_forwardIn C++ please, using basic programming one coding The main menu should show the available options: Show the roster: Displays all the player names and jersey numbers in a numbered list. Ex: 1. Susan Martinez (33), 2. Jake Smith (21), etc. Add a player: Prompts the user to type the player's full name and jersey number. Then adds the player to the roster. Remove a player: Displays the roster and prompts the user to enter the number of the player to remove. Then removes the player from the roster. Quit: Quits the program. The program should display the main menu after the user shows the roster, adds a player, or removes a player. The program only terminates when the user chooses the quit option. Data validation should be used where appropriate. Ex: The user should not be able to choose an option that doesn't exist or delete a player that doesn't exist. The roster should be kept in alphabetic order by the players' full names. Ex: If Alice Chang (9) is added to a roster with Jake Smith and…arrow_forwardCassignm222 Assignment 2 features designing a program using pseudocode and then completing the program in Python using a list. M4Lab2 asks you to write a Drawing app in Python and Pygame using a list for the colors. Each lab asks you to write pseudocode that plans the program's logic before you write the program in Python and to turn in three things: 1) the pseudocode, 2) a screenshot of the output, and 3) the Python program. # Step 1: Define a colors list to describe 3 colors.# Hint, use their RGB number values Step 2: define a radius variable for your pen at 5, 10 or 15# Test them to see which radius you prefer and use it # Step 3: write the elif for pressing button 2, similar to button 1 # Step 4: write the statement for button 2's color # Step 5: write the else statement for button 3 # Step 6: choose a color from the list??arrow_forward
- Create a Name Generator using python programing 2. Create 3 lists for first name, middle name, and last name with 10 items per list 3. The application will ask the user to generate a new name. 4. If yes, use a random number between 0 - 9 to randomly select items in the lists 5. Display the generated name “Congratulations! Your new name is ________” 6. If No, display the word “Thank you! ” and display all the names that user-generated.arrow_forwardDistance File Modify the Distance Calculator program that you wrote for Programming Problem 1 so it writes its output to a file instead of displaying it in a ListBox control. Open the file in Notepad or Visual Studio to confirm the output.arrow_forwardTheater Ticket System: A small ten-seat theater has contracted you to build software which will reserve tickets. The theater has two rows of five seats each. Each row is referred to by number (1 or 2) and each seat in the row is referred to by letter (A, B, C, D, and E). When started, the program should ask the user for the row they prefer (row selection). If that row has no empty seats then the program should ask the user if they prefer the other row, if no then display a message stating the next show is tomorrow. Upon selecting a row, the program should present the user with a choice of available seats in the row. The user can then either choose a seat and print the ticket (in this case a simple message will suffice) or return to row selection. If a ticket is printed the program should return to row selection. The program terminates when all seats are reserved. Please enter a row: 1 Available seats: A B C D E Which seat, enter Q for none?: B You have booked seat: 1B…arrow_forward
- Theater Ticket System: A small ten-seat theater has contracted you to build software which will reserve tickets. The theater has two rows of five seats each. Each row is referred to by number (1 or 2) and each seat in the row is referred to by letter (A, B, C, D, and E). When started, the program should ask the user for the row they prefer (row selection). If that row has no empty seats then the program should ask the user if they prefer the other row, if no then display a message stating the next show is tomorrow. Upon selecting a row, the program should present the user with a choice of available seats in the row. The user can then either choose a seat and print the ticket (in this case a simple message will suffice) or return to row selection. If a ticket is printed the program should return to row selection. The program terminates when all seats are reserved.arrow_forwardAdditional Notes: USING C# You cannot add two flights with the same flight number When you select “View Flights”, a list containing the Flight number, origin and destination for each flight must be shown. When you select “View a particular flight”, a list of all flights should be displayed and the user must be allowed to enter a particular flight number. All the information on that selected flight must be displayed. All the customers who are booked on that flight must SPECIAL NOTE: A customer can only be deleted if there are no bookings for that customer. A flight can only be deleted if there are no customers booked on the flight. You must extend the core design and add the functionality to add customers and booking features to the system. The information that must be recorded on a customer is as follows: A customer ID must be assigned to each customer by the system. (NOT entered by the user) The customer’s first name The customer’s last name. The customer’s phone (a string type…arrow_forwardCharge Account Validation Write a program that lets the user enter a charge account number. The program should determine if the number is valid by checking for it in the following list: 5658845 4520125 7895122 8777541 8451277 1302850 8080152 4562555 5552012 5050552 7825877 1250255 1005231 6545231 3852085 7576651 7881200 4581002 The list of numbers above should be initialized in a single-dimensional array. A simple binary search should be used to locate the number entered by the user. If the user enters a number that is in the array, the program should display a message saying that the number is valid along with index. If the user enters a number that is not in the array, the program should display a message indicating that the number is invalid. Note: values should be positive integers.arrow_forward
- Design a program that lets the user enter the total rainfall for each of 12 months into a list. The program should calculate and display the total rainfall for the year, the average monthly rainfall, and the months with the highest and lowest amounts.arrow_forwardCreate an application which is going to find out your maximum grade out of your Midterm grades. Your program should do the following activities: ● Create a list consist of your midterm grades. • Create a variable which keeps your school ID. ● Create a variable which keeps your name. . Create a variable which keeps your date of birth. Create a variable which calculates the average of the list. ● . The maximum grade of the list will be displayed in such a format: . You are going to use max() function in order to find the maximum grade. · You are going to find average of the list. The following output will be on the screen: My name is and my maximum midterm grade is The average of my midterm grades are_________. Do not forget to use comment tag in order to explain each line.arrow_forwardPlease provide answer in C#: Slot Machine Simulation A slot machine is a gambling device into which the user inserts money and then pulls a lever (or presses a button). The slot machine then displays a set of random images. If two or more of the images match, the user wins an amount of money that the slot machine dispenses back to the user. Create an application that simulates a slot machine. Figure 8-23 (on page 539 of your book) shows an example of how the form should look. The application should let the user enter into a TextBox the amount of money he or she is inserting into the machine. When the user clicks the Spin button, the application should display three randomly selected symbols. (Slot machines traditionally display fruit symbols. You will find a set of fruit symbols attached to this dropbox for your use - from the Student Sample Programs provided by the book author.) If none of the randomly displayed images match, the program should inform the user that he or she has won…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTProgramming with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage LearningProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:9781337102124
Author:Diane Zak
Publisher:Cengage Learning
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,