Question 1

You cannot create an object using a/an:

Accepted Answer

A) superclass constructor 
B) subclass constructor 
C) ancestor class constructor 
D) abstract class constructor 
A) superclass constructor 
B) subclass constructor 
C) ancestor class constructor 
D) abstract class constructor D

Question 2

An abstract class must have the modifier ___________ included in the class heading.

Accepted Answer

A) static 
B) abstract 
C) final 
D) private 
A) static 
B) abstract 
C) final 
D) private B

Question 3

Derive a class named Dress Shoes from the base class created in number 9 above.

Accepted Answer

public class DressShoe extends Shoe
{
private String type;//valid types include pumps,heels and flats
public DressShoe)
{
super);
type = "";
}
public DressShoeString c,String d,double s,String t)
{
superc,d,s);
setTypet);
}
public void setTypeString t)
{
type = t;
}
public String getType)
{
return type;
}
public String toString)
{
return "Dress shoe designed by " + this.getDesigner)+
"
Color: " + this.getColor)+ "
Size: " +
getSize)+ "

Question 4

Java uses late binding with private methods,methods marked final,or static methods.

Accepted Answer

A) True 
 B)False

Question 5

Override the clone method inherited in the Dress Shoes class created in number 10 above.

Accepted Answer

public Object clone)
{
return

Question 6

The type of the variable naming an object determines which method names can be used in an invocation with that calling object.

Accepted Answer

A) True 
 B)False

Question 7

An abstract method cannot be modified by:

Accepted Answer

A) public 
B) protected 
C) private 
D) none of the above 
A) public 
B) protected 
C) private 
D) none of the above

Question 8

Early binding enables the compiler to be more efficient.

Accepted Answer

A) True 
 B)False

Question 9

The principals of object oriented programming include:

Accepted Answer

A) encapsulation 
B) inheritance 
C) polymorphism 
D) all of the above 
A) encapsulation 
B) inheritance 
C) polymorphism 
D) all of the above

Question 10

Describe the limitations of the copy constructor.

Accepted Answer

There are times in which the c

Question 11

The final modifier is included before the definition of the method,then the method can be redefined in a derived class.

Accepted Answer

A) True 
 B)False

Question 12

Java allows an instance of an abstract class to be instantiated.

Accepted Answer

A) True 
 B)False

Question 13

What is an abstract method?

Accepted Answer

Abstract methods do not provid

Question 14

Derive a class named Boots from the base class created in number 9 above.

Accepted Answer

public class Boot extends Shoe
{
private

Question 15

Why should the instanceOf operator be used in conjunction with downcasting?

Accepted Answer

The instanceOf operator can be

Question 16

__________ refers to the ability to associate many meanings to one method name by means of the late binding mechanism.

Accepted Answer

A) Inheritance 
B) Encapsulation 
C) Polymorphism 
D) None of the above 
A) Inheritance 
B) Encapsulation 
C) Polymorphism 
D) None of the above

Question 17

Override the clone method inherited in the Tennis Shoes class created in number 11 above.

Accepted Answer

public Object clone)
{
return

Question 18

Polymorphism refers to the ability to associate many meanings to one method through dynamic binding.

Accepted Answer

A) True 
 B)False

Question 19

What are the advantages of polymorphism?

Accepted Answer

An advantage of polymorphism i

Question 20

Assigning an object of a derived class to a variable of a base class is called:

Accepted Answer

A) static binding 
B) dynamic binding 
C) upcasting 
D) downcasting 
A) static binding 
B) dynamic binding 
C) upcasting 
D) downcasting

You cannot create an object using a/an:

An abstract class must have the modifier ___________ included in the class heading.

Derive a class named Dress Shoes from the base class created in number 9 above.

Java uses late binding with private methods,methods marked final,or static methods.

Override the clone method inherited in the Dress Shoes class created in number 10 above.

The type of the variable naming an object determines which method names can be used in an invocation with that calling object.

An abstract method cannot be modified by:

Early binding enables the compiler to be more efficient.

The principals of object oriented programming include:

Describe the limitations of the copy constructor.

The final modifier is included before the definition of the method,then the method can be redefined in a derived class.

Java allows an instance of an abstract class to be instantiated.

What is an abstract method?

Derive a class named Boots from the base class created in number 9 above.

Why should the instanceOf operator be used in conjunction with downcasting?

__________ refers to the ability to associate many meanings to one method name by means of the late binding mechanism.

Override the clone method inherited in the Tennis Shoes class created in number 11 above.

Polymorphism refers to the ability to associate many meanings to one method through dynamic binding.

What are the advantages of polymorphism?

Assigning an object of a derived class to a variable of a base class is called:

Getting Started

Console Input and Output

Flow of Control

Defining Classes I

Defining Classes II

Arrays

Inheritance

Exception Handling

File IO

Recursion

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections,maps,and Iterators

Swing I

Swing II

Java Never Ends

Applets

Filters

Exam 8: Polymorphism and Abstract Classes

You cannot create an object using a/an:

An abstract class must have the modifier ___________ included in the class heading.

Derive a class named Dress Shoes from the base class created in number 9 above.

Java uses late binding with private methods,methods marked final,or static methods.

Override the clone method inherited in the Dress Shoes class created in number 10 above.

The type of the variable naming an object determines which method names can be used in an invocation with that calling object.

An abstract method cannot be modified by:

Early binding enables the compiler to be more efficient.

The principals of object oriented programming include:

Describe the limitations of the copy constructor.

The final modifier is included before the definition of the method,then the method can be redefined in a derived class.

Java allows an instance of an abstract class to be instantiated.

What is an abstract method?

Derive a class named Boots from the base class created in number 9 above.

Why should the instanceOf operator be used in conjunction with downcasting?

__________ refers to the ability to associate many meanings to one method name by means of the late binding mechanism.

Override the clone method inherited in the Tennis Shoes class created in number 11 above.

Polymorphism refers to the ability to associate many meanings to one method through dynamic binding.

What are the advantages of polymorphism?

Assigning an object of a derived class to a variable of a base class is called:

Getting Started

Console Input and Output

Flow of Control

Defining Classes I

Defining Classes II

Arrays

Inheritance

Exception Handling

File IO

Recursion

Uml and Patterns

Interfaces and Inner Classes

Generics and the Arraylist Class

Linked Data Structures

Collections,maps,and Iterators

Swing I

Swing II

Java Never Ends

Applets

Filters