EBK COMPUTER SCIENCE ILLUMINATED
7th Edition
ISBN: 9781284174755
Author: Dale
Publisher: JONES+B CO
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Chapter 7, Problem 43E
Program Plan Intro
a.
- Algorithm is a systematic plan to solve the problem or the sub problem.
- It is a step-by-step method of solving a problem.
- Algorithm is a set of error-free instructions to answer a problem or sub-problem.
- It starts to solve the problem by obtaining the input.
- It is generally used for data processing, calculation and other associated computer and mathematical operations.
Explanation of Solution
b.
Algorithm for morning wakes up:
Step 1: The alarm begins to ring.
Step 2: Press the sleep button.
Step 3: The alarm again begins to ring.
Step 4: Press the sleep button again.
Step 5: The alarm again begins to ring...
Explanation of Solution
c.
Algorithm for doing homework:
Step 1: Drink tea.
Step 2: Switch on the table light.
Step 3: Get the bag.
Step 4: Be seated on the chair.
Step 5: Open the bag.
Step 6: Get the book.
Step 7: Open the assignment...
Explanation of Solution
d.
Algorithm for driving to home in the afternoon:
Step 1: Seek for the car.
Step 2: Open car door.
Step 3: Get into the car.
Step 4: Put the seat belt.
Step 5: Initiate the engine.
Step 6: Turn on audio player.
Step 7: Performs “WHILE” loop...
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using r language
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 7 Solutions
EBK COMPUTER SCIENCE ILLUMINATED
Ch. 7 - Prob. 1ECh. 7 - Prob. 2ECh. 7 - Prob. 3ECh. 7 - Prob. 4ECh. 7 - Prob. 5ECh. 7 - Prob. 6ECh. 7 - Prob. 7ECh. 7 - Prob. 8ECh. 7 - Prob. 9ECh. 7 - Prob. 10E
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