Starting Out with Java: Early Objects (6th Edition)
6th Edition
ISBN: 9780134462011
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3AW
Look at the following description of a problem domain:
The bank offers the following types of accounts to its customers: savings accounts, checking accounts, and money market accounts. Customers are allowed to deposit money into an account (thereby increasing its balance), withdraw money from an account (thereby decreasing its balance), and earn interest on an account. Each account has an interest rate.
Assume that you are writing an application that will calculate the amount of interest earned for a bank account.
- a. Identify the potential classes in this problem domain.
- b. Refine the list to include only the necessary class or classes for this problem.
- c. Identify the responsibilities of the class or classes.
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Look at the following description of a problem domain:
The bank offers the following types of accounts to its customers: savings accounts, checking accounts, and money market accounts. Customers are allowed to deposit money into an account (thereby increasing its balance), withdraw money from an account (thereby decreasing its balance), and earn interest on the account. Each account has an interest rate. Assume that you are writing an application that will calculate the amount of interest earned for a bank account.A) Identify the potential classes in this problem domain.B) Refine the list to include only the necessary class or classes for this problem.C) Identify the responsibilities of the class or classes.
Class Assignment
This object represents a school assignment that a student will work on.
__init__(self, name: str, difficulty: float):
"""
Constructs an assignment with the given assignment name and a float that indicates the level of difficulty of
the assignment.
:param name: The name of the assignment
:param difficulty: The level of difficulty of the assignment
"""
get_name(self) -> str:
"""
Returns the name of the assignment as specified in the constructor.
:return: The assignment name
"""
get_difficulty(self) -> str:
"""
Returns the level of difficulty of the assignment as specified in the constructor.
:return: The assignment level
"""
__str__(self) -> str:
"""
Returns the name of the assignment as specified in the constructor.
:return: The assignment name
"""
Theater RevenueA movie theater only keeps a percentage of the revenue earned from ticket sales. The remainder goes to the movie company. Create a GUI application that allows the user to enterthe following data into text fields:• Price per adult ticket• Number of adult tickets sold• Price per child ticket• Number of child tickets soldThe application should calculate and display the following data for one night’s box officebusiness at a theater:• Gross revenue for adult tickets sold. This is the amount of money taken in for all adulttickets sold.• Net revenue for adult tickets sold. This is the amount of money from adult ticket salesleft over after the payment to the movie company has been deducted.• Gross revenue for child tickets sold. This is the amount of money taken in for all childtickets sold.• Net revenue for child tickets sold. This is the amount of money from child ticket salesleft over after the payment to the movie company has been deducted.• Total gross revenue. This is the…
Chapter 3 Solutions
Starting Out with Java: Early Objects (6th Edition)
Ch. 3.1 - In this chapter, we use the metaphor of a...Ch. 3.1 - Prob. 3.2CPCh. 3.1 - When a variable is said to reference an object,...Ch. 3.1 - A string literal, such as Joe, causes what type of...Ch. 3.1 - Prob. 3.5CPCh. 3.1 - Prob. 3.6CPCh. 3.1 - Prob. 3.7CPCh. 3.1 - Prob. 3.8CPCh. 3.1 - Prob. 3.9CPCh. 3.1 - What is a stale data item?
Ch. 3.3 - Assume that r1 and r2 are variables that reference...Ch. 3.4 - How is a constructor named?Ch. 3.4 - What is a constructors return type?Ch. 3.4 - Prob. 3.14CPCh. 3.8 - Prob. 3.15CPCh. 3.8 - When designing an object-oriented application, who...Ch. 3.8 - How do you identify the potential classes in a...Ch. 3.8 - What are a classs responsibilities?Ch. 3.8 - What two questions should you ask to determine a...Ch. 3.8 - Will all of a classs actions always be directly...Ch. 3 - This is a collection of programming statements...Ch. 3 - A class is analogous to a(n) _______. a. house b....Ch. 3 - An object is a(n) _____. a. blueprint b. attribute...Ch. 3 - This is a class member that holds data. a. method...Ch. 3 - This key word causes an object to be created in...Ch. 3 - This key word causes a value to be sent back from...Ch. 3 - This is a method that gets a value from a classs...Ch. 3 - This is a method that stores a value in a field or...Ch. 3 - When the value of an item is dependent on other...Ch. 3 - This is a method that is automatically called when...Ch. 3 - When a local variable has the same name as a...Ch. 3 - If you do not write a constructor for a class,...Ch. 3 - A classs responsibilities are __________. a. the...Ch. 3 - Prob. 14TFCh. 3 - True or False: When passing an argument to a...Ch. 3 - Prob. 16TFCh. 3 - True or False: Each instance of a class has its...Ch. 3 - True or False: When you write a constructor for a...Ch. 3 - True or False: To find the classes needed for an...Ch. 3 - Find the error in the following class: public...Ch. 3 - Prob. 2FTECh. 3 - The following statement attempts to create a...Ch. 3 - Design a class named Pet, which should have the...Ch. 3 - Look at the following partial class definition,...Ch. 3 - Look at the following description of a problem...Ch. 3 - What is the difference between a class and an...Ch. 3 - A contractor uses a blueprint to build a set of...Ch. 3 - What is an accessor method? What is a mutator...Ch. 3 - is it a good idea to make fields private? Why or...Ch. 3 - If a class has a private field, what has access to...Ch. 3 - Prob. 6SACh. 3 - Assume a program named MailList.java is stored in...Ch. 3 - Prob. 8SACh. 3 - Why are constructors useful for performing...Ch. 3 - Prob. 10SACh. 3 - What is the difference between an argument and a...Ch. 3 - Under what circumstances does Java automatically...Ch. 3 - What do you call a constructor that accepts no...Ch. 3 - Employee Class Write a class named Employee that...Ch. 3 - Car Class Write a class named Car that has the...Ch. 3 - Personal Information Class Design a class that...Ch. 3 - Temperature Class Write a Temperature class that...Ch. 3 - Retail Item Class Write a class named RetailItem...Ch. 3 - Payroll Class Design a Payroll class that has...Ch. 3 - TestScores Class Design a TestScores class that...Ch. 3 - Circle Class Write a Circle class that has the...Ch. 3 - Pet Class Design a class named Pet, which should...Ch. 3 - Patient Charges Write a class named Patient that...
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