Question 1

You can write a super statement that calls a superclass constructor, but only in the subclass's constructor.

Accepted Answer

A) True 
 B)False

Question 2

If ClassC is derived from ClassB, which is derived from ClassA, this would be an example of

Accepted Answer

A)  a chain of inheritance. 
B)  linear inheritance. 
C)  multiple interfaces. 
D)  cascading classes. 
A)  a chain of inheritance. 
B)  linear inheritance. 
C)  multiple interfaces. 
D)  cascading classes.

Question 3

In object-oriented programming, ________ allows you to extend the capabilities of a class by creating another class that is a specialized version of it.

Accepted Answer

A)  prototyping 
B)  code reusability 
C)  inheritance 
D)  data hiding 
A)  prototyping 
B)  code reusability 
C)  inheritance 
D)  data hiding

Question 4

Which of the following statements declares Salaried as a subclass of PayType?

Accepted Answer

A)  public class Salaried implements PayType 
B)  public class PayType derives Salaried 
C)  public class Salaried extends PayType 
D)  public class Salaried derivedFrom(Paytype) 
A)  public class Salaried implements PayType 
B)  public class PayType derives Salaried 
C)  public class Salaried extends PayType 
D)  public class Salaried derivedFrom(Paytype)

Question 5

If a method in a subclass has the same signature as a method in the superclass, the subclass method ________ the superclass method.

Accepted Answer

A)  inherits 
B)  overrides 
C)  overloads 
D)  implements 
A)  inherits 
B)  overrides 
C)  overloads 
D)  implements

Question 6

You can use this operator to determine whether an object is an instance of a particular class.

Accepted Answer

A)  equals 
B)  instanceof 
C)  >> 
D)  isa 
A)  equals 
B)  instanceof 
C)  >> 
D)  isa

Question 7

In ________, inheritance is shown with a line that has an open arrowhead at one end that points to the superclass.

Accepted Answer

A)  pseudocode 
B)  UML diagrams 
C)  CRC cards 
D)  hierarchy charts 
A)  pseudocode 
B)  UML diagrams 
C)  CRC cards 
D)  hierarchy charts

Question 8

A ________ member's access is somewhere between private and public.

Accepted Answer

A)  package 
B)  final 
C)  protected 
D)  static 
A)  package 
B)  final 
C)  protected 
D)  static

Question 9

When an "is a" relationship exists between objects, it means that the specialized object has all of the characteristics of the general object, plus additional characteristics that make it special.

Accepted Answer

A) True 
 B)False

Question 10

A protected member of a class may be directly accessed by

Accepted Answer

A)  methods of the same class. 
B)  methods of a subclass. 
C)  methods in the same package. 
D)  All of the above 
A)  methods of the same class. 
B)  methods of a subclass. 
C)  methods in the same package. 
D)  All of the above

Question 11

A class becomes abstract when you place the ________ key word in the class definition.

Accepted Answer

A)  super 
B)  extends 
C)  final 
D)  abstract 
A)  super 
B)  extends 
C)  final 
D)  abstract

Question 12

When one object is a specialized version of another object, there is this type of relationship between them.

Accepted Answer

A)  "is a" 
B)  "contains a" 
C)  "has a" 
D)  "consists of" 
A)  "is a" 
B)  "contains a" 
C)  "has a" 
D)  "consists of"

Question 13

In a UML diagram, you show a realization relationship by connecting a class and an interface with a

Accepted Answer

A)  dashed line that has an open arrowhead at one end. 
B)  line that has an open diamond at one end. 
C)  dashed line. 
D)  line that has an open arrowhead at one end. 
A)  dashed line that has an open arrowhead at one end. 
B)  line that has an open diamond at one end. 
C)  dashed line. 
D)  line that has an open arrowhead at one end.

Question 14

This key word indicates that a class inherits from another class.

Accepted Answer

A)  final 
B)  super 
C)  implements 
D)  extends 
A)  final 
B)  super 
C)  implements 
D)  extends

Question 15

When a method is declared with the ________ modifier, it cannot be overridden in a subclass.

Accepted Answer

A)  final 
B)  super 
C)  void 
D)  public 
A)  final 
B)  super 
C)  void 
D)  public

Question 16

An abstract class is not instantiated itself, but serves as a superclass for other classes.

Accepted Answer

A) True 
 B)False

Question 17

When an "is a" relationship exists between objects, it means that the specialized object has

Accepted Answer

A)  some of the characteristics of the general class, but not all, plus additional characteristics. 
B)  some of the characteristics of the general object, but not all. 
C)  none of the characteristics of the general object. 
D)  all the characteristics of the general object, plus additional characteristics that make it special. 
A)  some of the characteristics of the general class, but not all, plus additional characteristics. 
B)  some of the characteristics of the general object, but not all. 
C)  none of the characteristics of the general object. 
D)  all the characteristics of the general object, plus additional characteristics that make it special.

Question 18

Which of the following statements correctly specifies two interfaces?

Accepted Answer

A)  public class ClassA implements [Interface1, Interface2] 
B)  public class ClassA implements (Interface1, Interface2) 
C)  public class ClassA implements Interface1 | Interface2 
D)  public class ClassA implements Interface1, Interface2 
A)  public class ClassA implements [Interface1, Interface2] 
B)  public class ClassA implements (Interface1, Interface2) 
C)  public class ClassA implements Interface1 | Interface2 
D)  public class ClassA implements Interface1, Interface2

Question 19

You show inheritance in a UML diagram by connecting two classes with a line that has an open arrowhead that points to the subclass.

Accepted Answer

A) True 
 B)False

Question 20

If you do not provide an access specifier for a class member, the class member is given ________ access by default.

Accepted Answer

A)  private 
B)  public 
C)  protected 
D)  package 
A)  private 
B)  public 
C)  protected 
D)  package

You can write a super statement that calls a superclass constructor, but only in the subclass's constructor.

If ClassC is derived from ClassB, which is derived from ClassA, this would be an example of

In object-oriented programming, ________ allows you to extend the capabilities of a class by creating another class that is a specialized version of it.

Which of the following statements declares Salaried as a subclass of PayType?

If a method in a subclass has the same signature as a method in the superclass, the subclass method ________ the superclass method.

You can use this operator to determine whether an object is an instance of a particular class.

In ________, inheritance is shown with a line that has an open arrowhead at one end that points to the superclass.

A ________ member's access is somewhere between private and public.

When an "is a" relationship exists between objects, it means that the specialized object has all of the characteristics of the general object, plus additional characteristics that make it special.

A protected member of a class may be directly accessed by

A class becomes abstract when you place the ________ key word in the class definition.

When one object is a specialized version of another object, there is this type of relationship between them.

In a UML diagram, you show a realization relationship by connecting a class and an interface with a

This key word indicates that a class inherits from another class.

When a method is declared with the ________ modifier, it cannot be overridden in a subclass.

An abstract class is not instantiated itself, but serves as a superclass for other classes.

When an "is a" relationship exists between objects, it means that the specialized object has

Which of the following statements correctly specifies two interfaces?

You show inheritance in a UML diagram by connecting two classes with a line that has an open arrowhead that points to the subclass.

If you do not provide an access specifier for a class member, the class member is given ________ access by default.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Exceptions and Advanced File I/O

GUI Applications–Part 1

GUI Applications–Part 2

Applets and More

Creating GUI Applications with JavaFX

Recursion

Databases

Filters

Exam 9: Inheritance

You can write a super statement that calls a superclass constructor, but only in the subclass's constructor.

If ClassC is derived from ClassB, which is derived from ClassA, this would be an example of

In object-oriented programming, ________ allows you to extend the capabilities of a class by creating another class that is a specialized version of it.

Which of the following statements declares Salaried as a subclass of PayType?

If a method in a subclass has the same signature as a method in the superclass, the subclass method ________ the superclass method.

You can use this operator to determine whether an object is an instance of a particular class.

In ________, inheritance is shown with a line that has an open arrowhead at one end that points to the superclass.

A ________ member's access is somewhere between private and public.

When an "is a" relationship exists between objects, it means that the specialized object has all of the characteristics of the general object, plus additional characteristics that make it special.

A protected member of a class may be directly accessed by

A class becomes abstract when you place the ________ key word in the class definition.

When one object is a specialized version of another object, there is this type of relationship between them.

In a UML diagram, you show a realization relationship by connecting a class and an interface with a

This key word indicates that a class inherits from another class.

When a method is declared with the ________ modifier, it cannot be overridden in a subclass.

An abstract class is not instantiated itself, but serves as a superclass for other classes.

When an "is a" relationship exists between objects, it means that the specialized object has

Which of the following statements correctly specifies two interfaces?

You show inheritance in a UML diagram by connecting two classes with a line that has an open arrowhead that points to the subclass.

If you do not provide an access specifier for a class member, the class member is given ________ access by default.

Introduction to Computers and Java

Java Fundamentals

A First Look at Classes and Objects

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Exceptions and Advanced File I/O

GUI Applications–Part 1

GUI Applications–Part 2

Applets and More

Creating GUI Applications with JavaFX

Recursion

Databases

Filters