Question 1

In the scenario described in the accompanying figure, what will the first statement do?

Accepted Answer

A)  The cost method in Honda will be called. 
B)  The cost method in Car will be called. 
C)  Nothing will be called since the code will not compile as a result of multiple definitions of speed. 
D)  Overloading will be used to determine which cost method to use. 
A)  The cost method in Honda will be called. 
B)  The cost method in Car will be called. 
C)  Nothing will be called since the code will not compile as a result of multiple definitions of speed. 
D)  Overloading will be used to determine which cost method to use.

Question 2

Composition is a "has-a" relationship.

Accepted Answer

A) True 
 B)False

Question 3

To override a public method of a superclass in a subclass, the corresponding method in the subclass must have the same name but a different number of parameters.

Accepted Answer

A) True 
 B)False

Question 4

The private members of a superclass can be accessed by a subclass.

Accepted Answer

A) True 
 B)False

Question 5

Any new class you create from an existing class is called a(n) ____.

Accepted Answer

A)  base class 
B)  superclass 
C)  derived class 
D)  extended class 
A)  base class 
B)  superclass 
C)  derived class 
D)  extended class

Question 6

You must always use the reserved word super to use a method from the superclass in the subclass.

Accepted Answer

A) True 
 B)False

Question 7

If a class is declared final, then no other class can be derived from this class.

Accepted Answer

A) True 
 B)False

Question 8

What is the correct syntax for defining a new class Parakeet based on the superclass Bird?

Accepted Answer

A)  class Parakeet isa Bird{ } 
B)  class Bird defines Parakeet{ } 
C)  class Bird hasa Parakeet{ } 
D)  class Parakeet extends Bird{ } 
A)  class Parakeet isa Bird{ } 
B)  class Bird defines Parakeet{ } 
C)  class Bird hasa Parakeet{ } 
D)  class Parakeet extends Bird{ }

Question 9

In multiple inheritance, the subclass is derived from more than one superclass.

Accepted Answer

A) True 
 B)False

Question 10

-The method toString() is a public member of the class ____.

Accepted Answer

A)  Object 
B)  String 
C)  Writer 
D)  Output 
A)  Object 
B)  String 
C)  Writer 
D)  Output

In the scenario described in the accompanying figure, what will the first statement do?

Composition is a "has-a" relationship.

To override a public method of a superclass in a subclass, the corresponding method in the subclass must have the same name but a different number of parameters.

The private members of a superclass can be accessed by a subclass.

Any new class you create from an existing class is called a(n) ____.

You must always use the reserved word super to use a method from the superclass in the subclass.

If a class is declared final, then no other class can be derived from this class.

What is the correct syntax for defining a new class Parakeet based on the superclass Bird?

In multiple inheritance, the subclass is derived from more than one superclass.

-The method toString() is a public member of the class ____.

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures I: Selection

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Handling Exceptions and Events

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters

Exam 10: Inheritance and Polymorphism

In the scenario described in the accompanying figure, what will the first statement do?

Composition is a "has-a" relationship.

To override a public method of a superclass in a subclass, the corresponding method in the subclass must have the same name but a different number of parameters.

The private members of a superclass can be accessed by a subclass.

Any new class you create from an existing class is called a(n) ____.

You must always use the reserved word super to use a method from the superclass in the subclass.

If a class is declared final, then no other class can be derived from this class.

What is the correct syntax for defining a new class Parakeet based on the superclass Bird?

In multiple inheritance, the subclass is derived from more than one superclass.

-The method toString() is a public member of the class ____.

An Overview of Computers and Programming Languages

Basic Elements of Java

Introduction to Objects and Inputoutput

Control Structures I: Selection

Control Structures II: Repetition

Graphical User Interface Gui and Object-Oriented Design OOD

User-Defined Methods

User-Defined Classes and Adts

Arrays

Handling Exceptions and Events

Advanced Guis and Graphics

Recursion

Searching and Sorting

Filters