Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 3.1, Problem 1CP
What is a control structure?
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8. Cash RegisterThis exercise assumes you have created the RetailItem class for Programming Exercise 5. Create a CashRegister class that can be used with the RetailItem class. The CashRegister class should be able to internally keep a list of RetailItem objects. The class should have the following methods:
A method named purchase_item that accepts a RetailItem object as an argument. Each time the purchase_item method is called, the RetailItem object that is passed as an argument should be added to the list.
A method named get_total that returns the total price of all the RetailItem objects stored in the CashRegister object’s internal list.
A method named show_items that displays data about the RetailItem objects stored in the CashRegister object’s internal list.
A method named clear that should clear the CashRegister object’s internal list.
Demonstrate the CashRegister class in a program that allows the user to select several items for purchase. When the user is ready to check out, the…
5. RetailItem ClassWrite a class named RetailItem that holds data about an item in a retail store. The class should store the following data in attributes: item description, units in inventory, and price.
Once you have written the class, write a program that creates three RetailItem objects and stores the following data in them:
Description Units in Inventory PriceItem #1 Jacket 12 59.95Item #2 Designer Jeans 40 34.95Item #3 Shirt 20 24.95
Chapter 3 Solutions
Starting Out with Python (4th Edition)
Ch. 3.1 - What is a control structure?Ch. 3.1 - What is a decision structure?Ch. 3.1 - Prob. 3CPCh. 3.1 - Prob. 4CPCh. 3.1 - What types of relationships between values can you...Ch. 3.1 - Write an if statement that assigns 0 to x if y is...Ch. 3.1 - Write an if statement that assigns 0.2 to...Ch. 3.2 - Prob. 8CPCh. 3.2 - What statement do you use in Python to write a...Ch. 3.2 - When you write an if-else statement, under what...
Ch. 3.3 - What would the following code display? If 'z a:...Ch. 3.3 - What would the following code display? s1 = 'New...Ch. 3.4 - Convert the following code to an if-elif-else...Ch. 3.5 - Prob. 14CPCh. 3.5 - Prob. 15CPCh. 3.5 - Assume the variables a = 2, b = 4, and c = 6....Ch. 3.5 - Explain how short-circuit evaluation works with...Ch. 3.5 - Write an if statement that displays the message...Ch. 3.5 - Write an if statement that displays the message...Ch. 3.6 - Prob. 20CPCh. 3.6 - What is a flag variable?Ch. 3.7 - Prob. 22CPCh. 3.7 - Prob. 23CPCh. 3.7 - Prob. 24CPCh. 3.7 - Prob. 25CPCh. 3.7 - How do you determine the turtle's pen color? How...Ch. 3.7 - Prob. 27CPCh. 3.7 - Prob. 28CPCh. 3 - A ______ structure can execute a set of statements...Ch. 3 - A __________ structure provides one alternative...Ch. 3 - A(n) _________ expression has a value of either...Ch. 3 - The symbols , , and == are all ___________...Ch. 3 - A(n)__________ structure tests a condition and...Ch. 3 - You use a(n) _______ statement to write a single...Ch. 3 - You use a(n) ______ statement to write a dual...Ch. 3 - and, or, and not are ________ operators. a....Ch. 3 - A compound Boolean expression created with the...Ch. 3 - A compound Boolean expression created with the...Ch. 3 - The _________ operator takes a Boolean expression...Ch. 3 - A ________ is a Boolean variable that signals when...Ch. 3 - Prob. 1TFCh. 3 - A program can be made of only one type of control...Ch. 3 - A single alternative decision structure tests a...Ch. 3 - A decision structure can be nested inside another...Ch. 3 - A compound Boolean expression created with the and...Ch. 3 - Explain what is meant by the term conditionally...Ch. 3 - You need to test a condition then execute one set...Ch. 3 - Briefly describe how the and operator works.Ch. 3 - Briefly describe how the or operator works.Ch. 3 - Prob. 5SACh. 3 - What is a flag and how does it work?Ch. 3 - Write an if statement that assigns 20 to the...Ch. 3 - Write an if statement that assigns 0 to the...Ch. 3 - Write an if-else statement that assigns 0 to the...Ch. 3 - The following code contains several nested if-else...Ch. 3 - Write nested decision structures that perform the...Ch. 3 - Write an if-else statement that displays 'speed is...Ch. 3 - Write an if-else statement that determines whether...Ch. 3 - Prob. 8AWCh. 3 - Prob. 9AWCh. 3 - Prob. 10AWCh. 3 - Day of the Week Write a program that asks the user...Ch. 3 - Areas of Rectangles The area of a rectangle is the...Ch. 3 - Age Classifier Write a program that asks the user...Ch. 3 - Roman Numerals Write a program that prompts the...Ch. 3 - Mass and Weight Scientists measure an objects mass...Ch. 3 - Magic Dates The date June 10, 1960, is special...Ch. 3 - Color Mixer The colors red, blue, and yellow are...Ch. 3 - Hot Dog Cookout Calculator Assume hot dogs come in...Ch. 3 - Roulette Wheel Colors On a roulette wheel, the...Ch. 3 - Money Counting Game Create a change-counting game...Ch. 3 - Book Club Points Serendipity Booksellers has a...Ch. 3 - Software Sales A software company sells a package...Ch. 3 - Shipping Charges The Fast Freight Shipping Company...Ch. 3 - Body Mass Index Write a program that calculates...Ch. 3 - Time Calculator Write a program that asks the user...Ch. 3 - February Days The month of February normally has...Ch. 3 - Wi-Fi Diagnostic Tree Figure 3-19 shows a...Ch. 3 - Restaurant Selector You have a group of friends...Ch. 3 - Turtle Graphics: Hit the Target Modification...
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