Question 1

Any class can contain an unlimited number of methods.

Accepted Answer

A) True 
 B)False  True

Question 2

How do you create an instance of a class? Provide an example.

Accepted Answer

A two-step process creates an object that is an instance of a class. First, you supply a type and an identifier-just as when you declare any variable-and then you allocate computer memory for that object. For example, you might define an integer as int someValue; and you might define an Employee as follows: Employee someEmployee;. In this statement, someEmployee stands for any legal identifier you choose to represent an Employee.

Question 3

Explain the purpose of a return type of a method. Describe the return value of a method that returns no data.

Accepted Answer

A return type describes the type of data the method sends back to its calling method. Not all methods return a value to their calling methods; a method that returns no data has a return type of void.

Question 4

A(n) ____________________ is a number appended to a field, typically an ID number or account number.

Accepted Answer

The answer of A(n) ____________________ is a number appended to...

Question 5

Methods used with object instantiations are called ____ methods.

Accepted Answer

A)  accessor 
B)  internal 
C)  static 
D)  instance 
A)  accessor 
B)  internal 
C)  static 
D)  instance

Question 6

Match each term with the correct statement below.
-Used to return a value back to the calling method

Accepted Answer

A) return statement 
B) header 
C) instance variables 
D) method’s signature 
E) formal parameters
F)static method
G)data fields
H)parameter type
I)class user 
A) return statement 
B) header 
C) instance variables 
D) method’s signature 
E) formal parameters
F)static method
G)data fields
H)parameter type
I)class user

Question 7

Does a programmer need to write every class he or she uses? Why or why not?

Accepted Answer

Often, you will write programs that use

Question 8

You are ____ required to write a constructor method for a class.

Accepted Answer

A)  never 
B)  always 
C)  sometimes 
D)  often 
A)  never 
B)  always 
C)  sometimes 
D)  often

Question 9

A(n) ____ is a program module that contains a series of statements that carry out a task.

Accepted Answer

A)  argument 
B)  method 
C)  application 
D)  declaration 
A)  argument 
B)  method 
C)  application 
D)  declaration

Question 10

A(n) ____ causes a value to be sent from a called method back to the calling method.

Accepted Answer

A)  return statement 
B)  method statement 
C)  instantiation 
D)  inheritance relationship 
A)  return statement 
B)  method statement 
C)  instantiation 
D)  inheritance relationship

Question 11

public int getStudentNum()
{
return studentNum;
}
In the above code, identify if the method is a mutator method or an accessor method. Describe how the two types of methods differ and how they are similar.

Accepted Answer

The predictRaise() method is a void meth

Question 12

An object is a ____ of a class.

Accepted Answer

A)  constant 
B)  member 
C)  method 
D)  field 
A)  constant 
B)  member 
C)  method 
D)  field

Question 13

Methods use memory locations to hold values of variables. Describe the process of memory allocation and variable scope.

Accepted Answer

Each time a method executes, memory loca

Question 14

____ parameters are variables in a method declaration that accept the values from the actual parameters.

Accepted Answer

A)  System 
B)  Formal 
C)  Public 
D)  Static 
A)  System 
B)  Formal 
C)  Public 
D)  Static

Question 15

Parentheses - may contain data to be sent to the method, but may be empty if no outside data is required

Accepted Answer

The predictRaise method calls the calcul

Question 16

To execute a method, you ____________________ it from another method.

Accepted Answer

The answer of To execute a method, you ____________________ it...

Question 17

When the parentheses of a method are empty, what does this indicate?

Accepted Answer

Every method header contains a set of pa

Question 18

For ease in locating class methods, many programmers store them in ____ order.

Accepted Answer

A)  chronological 
B)  type 
C)  alphabetical 
D)  numeric 
A)  chronological 
B)  type 
C)  alphabetical 
D)  numeric

Question 19

Public classes are accessible by all objects, which means that public classes can be ____, or used as a basis for any other class.

Accepted Answer

A)  saved 
B)  extended 
C)  copied 
D)  used 
A)  saved 
B)  extended 
C)  copied 
D)  used

Question 20

____ is the encapsulation of method details within a class.

Accepted Answer

A)  An interface 
B)  A calling method 
C)  Implementation hiding 
D)  Instantiation 
A)  An interface 
B)  A calling method 
C)  Implementation hiding 
D)  Instantiation

Any class can contain an unlimited number of methods.

How do you create an instance of a class? Provide an example.

Explain the purpose of a return type of a method. Describe the return value of a method that returns no data.

A(n) ____________________ is a number appended to a field, typically an ID number or account number.

Methods used with object instantiations are called ____ methods.

Match each term with the correct statement below. -Used to return a value back to the calling method

Does a programmer need to write every class he or she uses? Why or why not?

You are ____ required to write a constructor method for a class.

A(n) ____ is a program module that contains a series of statements that carry out a task.

A(n) ____ causes a value to be sent from a called method back to the calling method.

public int getStudentNum() { return studentNum; } In the above code, identify if the method is a mutator method or an accessor method. Describe how the two types of methods differ and how they are similar.

An object is a ____ of a class.

Methods use memory locations to hold values of variables. Describe the process of memory allocation and variable scope.

____ parameters are variables in a method declaration that accept the values from the actual parameters.

Parentheses - may contain data to be sent to the method, but may be empty if no outside data is required

To execute a method, you ____________________ it from another method.

When the parentheses of a method are empty, what does this indicate?

For ease in locating class methods, many programmers store them in ____ order.

Public classes are accessible by all objects, which means that public classes can be ____, or used as a basis for any other class.

____ is the encapsulation of method details within a class.

Creating Java Programs

Using Data

More Object Concepts

Making Decisions

Looping

Characters, Strings, and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Applets, Images, and Sound

Filters

Exam 3: Using Methods, Classes, and Objects

Any class can contain an unlimited number of methods.

How do you create an instance of a class? Provide an example.

Explain the purpose of a return type of a method. Describe the return value of a method that returns no data.

A(n) ____________________ is a number appended to a field, typically an ID number or account number.

Methods used with object instantiations are called ____ methods.

Match each term with the correct statement below. -Used to return a value back to the calling method

Does a programmer need to write every class he or she uses? Why or why not?

You are ____ required to write a constructor method for a class.

A(n) ____ is a program module that contains a series of statements that carry out a task.

A(n) ____ causes a value to be sent from a called method back to the calling method.

public int getStudentNum() { return studentNum; } In the above code, identify if the method is a mutator method or an accessor method. Describe how the two types of methods differ and how they are similar.

An object is a ____ of a class.

Methods use memory locations to hold values of variables. Describe the process of memory allocation and variable scope.

____ parameters are variables in a method declaration that accept the values from the actual parameters.

Parentheses - may contain data to be sent to the method, but may be empty if no outside data is required

To execute a method, you ____________________ it from another method.

When the parentheses of a method are empty, what does this indicate?

For ease in locating class methods, many programmers store them in ____ order.

Public classes are accessible by all objects, which means that public classes can be ____, or used as a basis for any other class.

____ is the encapsulation of method details within a class.

Creating Java Programs

Using Data

More Object Concepts

Making Decisions

Looping

Characters, Strings, and the Stringbuilder

Arrays

Advanced Array Concepts

Introduction to Inheritance

Advanced Inheritance Concepts

Exception Handling

File Input and Output

Introduction to Swing Components

Advanced Gui Topics

Graphics

Applets, Images, and Sound

Filters