AP CSA - Inheritance, plus one while loop.
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Medium
Susan Moore
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider classes Manager and Employee. Which should be the superclass and which should be the subclass?
Manager is the superclass.
Employee is the subclass.
Employee is the superclass.
Manager is the subclass.
Neither. Inheritance is not appropriate in this case.
Answer explanation
Because every manager is an employee but not the other way around, the Manager class is more specialized. It is the subclass, and the Employee is the superclass.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Which of the following classes BankAccount, CheckingAccount and SavingsAccount would be the superclass?
Answer explanation
CheckingAccount and SavingsAccount both inherit from the more general class BankAccount.
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Consider the method doSomething(Car c). Select all vehicle classes from Figure 1 whose objects cannot be passed to this method.
SUV
Vehicle
Truck
Motorcycle
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Should a class Quiz inherit from the class Question?
Yes
No
Answer explanation
A Quiz class should not inherit from the class Question. A quiz isn't a question. it has questions.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following correctly instantiates a new Painter object?
Painter kahlo = new Painter;
Painter kahlo = Painter();
kahlo Painter = new Painter();
Painter kahlo = new Painter();
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the code segment.
What is the name of the superclass?
Painter
PainterPlus
turnAround
SuperPainter
Answer explanation
The name of the superclass is indicated after the extends keyword. In this example, the superclass is Painter
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fill in the blank. Inheritance represents a/an ___ relationship.
is-many
has-a
is-a
none of these
Answer explanation
Inheritance represents an is-a relationship. For example, Dog is a Pet.
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