Question 1

For the following code, which statement is not true?
Public class Circle
{ private double radius;
Public double x;
Private double y;
}

Accepted Answer

A)  The y field is available to code that is written outside the Circle class. 
B)  The radius field is not available to code written outside the Circle class. 
C)  The radius, x, and y fields are members of the Circle class. 
D)  The x field is available to code that is written outside the Circle class. 
A)  The y field is available to code that is written outside the Circle class. 
B)  The radius field is not available to code written outside the Circle class. 
C)  The radius, x, and y fields are members of the Circle class. 
D)  The x field is available to code that is written outside the Circle class.

Question 2

The scope of a local variable is

Accepted Answer

A)  inside the parentheses of a method header. 
B)  the method in which they are defined. 
C)  inside the class, but not inside any method. 
D)  the entire class. 
A)  inside the parentheses of a method header. 
B)  the method in which they are defined. 
C)  inside the class, but not inside any method. 
D)  the entire class.

Question 3

An access specifier indicates how the class may be accessed.

Accepted Answer

A) True 
 B)False

Question 4

What is the following statement an example of? import java.util.Scanner;

Accepted Answer

A)  an explicit import statement 
B)  an unconditional import statement 
C)  a wildcard import statement 
D)  a conditional import statement 
A)  an explicit import statement 
B)  an unconditional import statement 
C)  a wildcard import statement 
D)  a conditional import statement

Question 5

The key word new

Accepted Answer

A)  creates a new class. 
B)  creates a new Java byte code file. 
C)  creates an object in memory. 
D)  creates a new variable in memory. 
A)  creates a new class. 
B)  creates a new Java byte code file. 
C)  creates an object in memory. 
D)  creates a new variable in memory.

Question 6

A constructor is a method that is automatically called when an object is created.

Accepted Answer

A) True 
 B)False

Question 7

When an argument is passed by value,

Accepted Answer

A)  the parameter variable holds the address of the argument. 
B)  the parameter variable cannot be changed. 
C)  the parameter variable holds a copy of the value passed to it. 
D)  changes can be made to the argument variable. 
A)  the parameter variable holds the address of the argument. 
B)  the parameter variable cannot be changed. 
C)  the parameter variable holds a copy of the value passed to it. 
D)  changes can be made to the argument variable.

Question 8

For the following code, which statement is not true?
Public class Sphere
{ private double radius;
Public double x;
Private double y;
Private double z;
}

Accepted Answer

A)  The z field is available to code that is written outside the Sphere class. 
B)  The radius field is not available to code written outside the Sphere class. 
C)  The radius, x, y, and z fields are members of the Sphere class. 
D)  The x field is available to code that is written outside the Sphere class. 
A)  The z field is available to code that is written outside the Sphere class. 
B)  The radius field is not available to code written outside the Sphere class. 
C)  The radius, x, y, and z fields are members of the Sphere class. 
D)  The x field is available to code that is written outside the Sphere class.

Question 9

What is the following statement an example of? import java.util.*;

Accepted Answer

A)  an explicit import statement 
B)  an unconditional import statement 
C)  a wildcard import statement 
D)  a conditional import statement 
A)  an explicit import statement 
B)  an unconditional import statement 
C)  a wildcard import statement 
D)  a conditional import statement

Question 10

Methods that operate on an object's fields are called

Accepted Answer

A)  instance methods. 
B)  instance variables. 
C)  private methods. 
D)  public methods. 
A)  instance methods. 
B)  instance variables. 
C)  private methods. 
D)  public methods.

Question 11

UML diagrams do not contain

Accepted Answer

A)  fields. 
B)  methods. 
C)  class names. 
D)  object names. 
A)  fields. 
B)  methods. 
C)  class names. 
D)  object names.

Question 12

It is common practice in object-oriented programming to make all of a class's

Accepted Answer

A)  fields private. 
B)  methods private. 
C)  fields public. 
D)  fields and methods public. 
A)  fields private. 
B)  methods private. 
C)  fields public. 
D)  fields and methods public.

Question 13

Which of the following is not involved in finding the classes when developing an object-oriented application?

Accepted Answer

A)  Describe the problem domain. 
B)  Write the code. 
C)  Refine the list of nouns to include only those that are relevant to the problem. 
D)  Identify all the nouns. 
A)  Describe the problem domain. 
B)  Write the code. 
C)  Refine the list of nouns to include only those that are relevant to the problem. 
D)  Identify all the nouns.

Question 14

Shadowing is the term used to describe where the field name is hidden by the name of a local or parameter variable.

Accepted Answer

A) True 
 B)False

Question 15

A UML diagram uses the ________ symbol to indicate that a member is private.

Accepted Answer

A)  * 
B)  - 
C)  # 
D)  + 
A)  * 
B)  - 
C)  # 
D)  +

Question 16

Another term for an object of a class is a(n)

Accepted Answer

A)  access specifier. 
B)  instance. 
C)  member. 
D)  method. 
A)  access specifier. 
B)  instance. 
C)  member. 
D)  method.

Question 17

A constructor

Accepted Answer

A)  always accepts two arguments. 
B)  has the same name as the class. 
C)  has return type of void. 
D)  always has an access specifier of private. 
A)  always accepts two arguments. 
B)  has the same name as the class. 
C)  has return type of void. 
D)  always has an access specifier of private.

Question 18

Data hiding, which means that critical data stored inside the object is protected from code outside the object, is accomplished in Java by

Accepted Answer

A)  using the public access specifier on the class methods. 
B)  using the private access specifier on the class methods. 
C)  using the private access specifier on the class fields. 
D)  using the private access specifier on the class definition. 
A)  using the public access specifier on the class methods. 
B)  using the private access specifier on the class methods. 
C)  using the private access specifier on the class fields. 
D)  using the private access specifier on the class definition.

Question 19

After the header, the body of the method appears inside a set of

Accepted Answer

A)  braces, {}. 
B)  parentheses, (). 
C)  brackets, []. 
D)  double quotes, "" . 
A)  braces, {}. 
B)  parentheses, (). 
C)  brackets, []. 
D)  double quotes, "" .

Question 20

You use this key word to import a class.

Accepted Answer

A)  import 
B)  assume 
C)  use 
D)  link 
A)  import 
B)  assume 
C)  use 
D)  link

For the following code, which statement is not true? Public class Circle { private double radius; Public double x; Private double y; }

The scope of a local variable is

An access specifier indicates how the class may be accessed.

What is the following statement an example of? import java.util.Scanner;

The key word new

A constructor is a method that is automatically called when an object is created.

When an argument is passed by value,

For the following code, which statement is not true? Public class Sphere { private double radius; Public double x; Private double y; Private double z; }

What is the following statement an example of? import java.util.*;

Methods that operate on an object's fields are called

UML diagrams do not contain

It is common practice in object-oriented programming to make all of a class's

Which of the following is not involved in finding the classes when developing an object-oriented application?

Shadowing is the term used to describe where the field name is hidden by the name of a local or parameter variable.

A UML diagram uses the ________ symbol to indicate that a member is private.

Another term for an object of a class is a(n)

A constructor

Data hiding, which means that critical data stored inside the object is protected from code outside the object, is accomplished in Java by

After the header, the body of the method appears inside a set of

You use this key word to import a class.

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Inheritance

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 3: A First Look at Classes and Objects

For the following code, which statement is not true? Public class Circle { private double radius; Public double x; Private double y; }

The scope of a local variable is

An access specifier indicates how the class may be accessed.

What is the following statement an example of? import java.util.Scanner;

The key word new

A constructor is a method that is automatically called when an object is created.

When an argument is passed by value,

For the following code, which statement is not true? Public class Sphere { private double radius; Public double x; Private double y; Private double z; }

What is the following statement an example of? import java.util.*;

Methods that operate on an object's fields are called

UML diagrams do not contain

It is common practice in object-oriented programming to make all of a class's

Which of the following is not involved in finding the classes when developing an object-oriented application?

Shadowing is the term used to describe where the field name is hidden by the name of a local or parameter variable.

A UML diagram uses the ________ symbol to indicate that a member is private.

Another term for an object of a class is a(n)

A constructor

Data hiding, which means that critical data stored inside the object is protected from code outside the object, is accomplished in Java by

After the header, the body of the method appears inside a set of

You use this key word to import a class.

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

A Second Look at Classes and Objects

Arrays and the ArrayList Class

Text Processing and Wrapper Classes

Inheritance

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