Question 1

Match each term with the correct statement below.
-A class-naming conflict

Accepted Answer

A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface 
A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface B

Question 2

A good toString() method can be very useful in debugging a program.

Accepted Answer

A) True 
 B)False  True

Question 3

Match each term with the correct statement below.
-Contains the Object class

Accepted Answer

A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface 
A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface G

Question 4

Abstract classes and interfaces are similar in that you cannot instantiate concrete objects from either one.

Accepted Answer

A) True 
 B)False

Question 5

What are the three ways in which you can compare abstract classes and interfaces?

Accepted Answer

The purpose for creating an interface co

Question 6

What are the advantages to creating a useful, extendable superclass?

Accepted Answer

* Subclass creators save development tim

Question 7

What is the toString() method used for and how is it used?

Accepted Answer

The Object class toString() method conve

Question 8

Instead of using the automatic toString() method with your classes, it is usually more useful to write your own ____ version of the toString() method that displays some or all of the data field values for the object with which you use it.

Accepted Answer

A)  overloaded 
B)  protected 
C)  static 
D)  condensed 
A)  overloaded 
B)  protected 
C)  static 
D)  condensed

Question 9

Abstract classes and methods appear in ____ in a class diagram.

Accepted Answer

A)  bold 
B)  all caps 
C)  italics 
D)  blue 
A)  bold 
B)  all caps 
C)  italics 
D)  blue

Question 10

When you define a class, if you do not explicitly extend another class, your class is an extension of the ____ class.

Accepted Answer

A)  Object 
B)  super 
C)  public 
D)  abstract 
A)  Object 
B)  super 
C)  public 
D)  abstract

Question 11

The ___ method is useful in debugging a program because it can be used to display and examine values.

Accepted Answer

A)  finalize() 
B)  toString() 
C)  notify() 
D)  equals() 
A)  finalize() 
B)  toString() 
C)  notify() 
D)  equals()

Question 12

Which of the following statements creates an array of three Animal references?

Accepted Answer

A)  Animal[] ref = new Animal(3); 
B)  Animal[] new = ref Animal[3]; 
C)  Animal[] animalRef = new Animal[3]; 
D)  Animal[] ref = extend Animal[3]; 
A)  Animal[] ref = new Animal(3); 
B)  Animal[] new = ref Animal[3]; 
C)  Animal[] animalRef = new Animal[3]; 
D)  Animal[] ref = extend Animal[3];

Question 13

If Java did not allow you to ____ classes, you would need to create every part of a program from scratch.

Accepted Answer

A)  extend 
B)  override 
C)  abstract 
D)  import 
A)  extend 
B)  override 
C)  abstract 
D)  import

Question 14

You sometimes create an abstract class only so you can ____ it to another class.

Accepted Answer

A)  link 
B)  copy 
C)  extend 
D)  abstract 
A)  link 
B)  copy 
C)  extend 
D)  abstract

Question 15

The Object class contains a(n) ____________________ method that takes a single argument, which must be the same type as the type of the invoking object.

Accepted Answer

The answer of The Object class contains a(n) ____________________ method...

Question 16

When a superclass is abstract, you cannot instantiate objects of a superclass. How can you use a superclass abstract object?

Accepted Answer

When a superclass is abstract, you canno

Question 17

The java.lang package contains the Object class and is imported automatically each time a program is written.

Accepted Answer

A) True 
 B)False

Question 18

Match each term with the correct statement below.
-Prohibited in Java

Accepted Answer

A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface 
A) dynamic method binding 
B) collision 
C) GregorianCalendar 
D) multiple inheritance 
E) equals() method
F)-d option
G)java.lang
H)public, static, and final
I)interface

Question 19

Java's Object class contains a public method named ____ that returns an integer representing the hash code.

Accepted Answer

A)  length() 
B)  hashCode() 
C)  hcode() 
D)  toString() 
A)  length() 
B)  hashCode() 
C)  hcode() 
D)  toString()

Question 20

When you create classes for others to use, why would you not want to provide the users with your source code in the files with .java extensions?

Accepted Answer

When you create professional classes for

Match each term with the correct statement below. -A class-naming conflict

A good toString() method can be very useful in debugging a program.

Match each term with the correct statement below. -Contains the Object class

Abstract classes and interfaces are similar in that you cannot instantiate concrete objects from either one.

What are the three ways in which you can compare abstract classes and interfaces?

What are the advantages to creating a useful, extendable superclass?

What is the toString() method used for and how is it used?

Instead of using the automatic toString() method with your classes, it is usually more useful to write your own ____ version of the toString() method that displays some or all of the data field values for the object with which you use it.

Abstract classes and methods appear in ____ in a class diagram.

When you define a class, if you do not explicitly extend another class, your class is an extension of the ____ class.

The ___ method is useful in debugging a program because it can be used to display and examine values.

Which of the following statements creates an array of three Animal references?

If Java did not allow you to ____ classes, you would need to create every part of a program from scratch.

You sometimes create an abstract class only so you can ____ it to another class.

The Object class contains a(n) ____________________ method that takes a single argument, which must be the same type as the type of the invoking object.

When a superclass is abstract, you cannot instantiate objects of a superclass. How can you use a superclass abstract object?

The java.lang package contains the Object class and is imported automatically each time a program is written.

Match each term with the correct statement below. -Prohibited in Java

Java's Object class contains a public method named ____ that returns an integer representing the hash code.

When you create classes for others to use, why would you not want to provide the users with your source code in the files with .java extensions?

Creating Java Programs

Using Data

Using Methods, Classes, and Objects

More Object Concepts

Making Decisions

Looping

Characters, Strings, and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Applets, Images, and Sound

Filters

Exam 11: Advanced Inheritance Concepts

Match each term with the correct statement below. -A class-naming conflict

A good toString() method can be very useful in debugging a program.

Match each term with the correct statement below. -Contains the Object class

Abstract classes and interfaces are similar in that you cannot instantiate concrete objects from either one.

What are the three ways in which you can compare abstract classes and interfaces?

What are the advantages to creating a useful, extendable superclass?

What is the toString() method used for and how is it used?

Instead of using the automatic toString() method with your classes, it is usually more useful to write your own ____ version of the toString() method that displays some or all of the data field values for the object with which you use it.

Abstract classes and methods appear in ____ in a class diagram.

When you define a class, if you do not explicitly extend another class, your class is an extension of the ____ class.

The ___ method is useful in debugging a program because it can be used to display and examine values.

Which of the following statements creates an array of three Animal references?

If Java did not allow you to ____ classes, you would need to create every part of a program from scratch.

You sometimes create an abstract class only so you can ____ it to another class.

The Object class contains a(n) ____________________ method that takes a single argument, which must be the same type as the type of the invoking object.

When a superclass is abstract, you cannot instantiate objects of a superclass. How can you use a superclass abstract object?

The java.lang package contains the Object class and is imported automatically each time a program is written.

Match each term with the correct statement below. -Prohibited in Java

Java's Object class contains a public method named ____ that returns an integer representing the hash code.

When you create classes for others to use, why would you not want to provide the users with your source code in the files with .java extensions?

Creating Java Programs

Using Data

Using Methods, Classes, and Objects

More Object Concepts

Making Decisions

Looping

Characters, Strings, and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Applets, Images, and Sound

Filters