Question 1

What does the following UML diagram entry mean? + setHeight(h : double): void

Accepted Answer

A)  this is a public attribute named Height and is a double data type 
B)  this is a private method with no parameters and returns a double data type 
C)  this is a private attribute named Height and is a double data type 
D)  this is a public method with a parameter of data type double and does not return a value 
A)  this is a public attribute named Height and is a double data type 
B)  this is a private method with no parameters and returns a double data type 
C)  this is a private attribute named Height and is a double data type 
D)  this is a public method with a parameter of data type double and does not return a value

Question 2

The following package is automatically imported into all Java programs.

Accepted Answer

A)  java.java 
B)  java.default 
C)  java.util 
D)  java.lang 
A)  java.java 
B)  java.default 
C)  java.util 
D)  java.lang

Question 3

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

Accepted Answer

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

Question 4

True/False: The term "no-arg constructor" is applied to any constructor that does not accept arguments.

Accepted Answer

A) True 
 B)False

Question 5

The term "default constructor" is applied to the first constructor written by the author of a class.

Accepted Answer

A) True 
 B)False

Question 6

Given the following code,what will be the value of finalAmount when it is displayed? public class Order
{
Private int orderNum;
Private double orderAmount;
Private double orderDiscount;
Public Order(int orderNumber,double orderAmt,
Double orderDisc)
{
OrderNum = orderNumber;
OrderAmount = orderAmt;
OrderDiscount = orderDisc;
}
Public double finalOrderTotal()
{
Return orderAmount - orderAmount *
OrderDiscount;
}
}
Public class CustomerOrder
{
Public static void main(String[] args)
{
Order order;
Int orderNumber = 1234;
Double orderAmt = 580.00;
Double orderDisc = .1;
Order = new Order(orderNumber,orderAmt,orderDisc);
Double finalAmount = order.finalOrderTotal();
System.out.println("Final order amount = $" +
FinalAmount);
}
}

Accepted Answer

A)  528.00 
B)  580.00 
C)  522.00 
D)  There is no value because the object order has not been created. 
A)  528.00 
B)  580.00 
C)  522.00 
D)  There is no value because the object order has not been created.

Question 7

Given the following code,what will be the value of finalAmount when it is displayed? public class Order
{
Private int orderNum;
Private double orderAmount;
Private double orderDiscount;
Public Order(int orderNumber,double orderAmt,
Double orderDisc)
{
OrderNum = orderNumber;
OrderAmount = orderAmt;
OrderDiscount = orderDisc;
}
Public int getOrderAmount()
{
Return orderAmount;
}
Public int getOrderDisc()
{
Return orderDisc;
}
}
Public class CustomerOrder
{
Public static void main(String[] args)
{
Int ordNum = 1234;
Double ordAmount = 580.00;
Double discountPer = .1;
Order order;
Double finalAmount = order.getOrderAmount()-
Order.getOrderAmount()* order.getOrderDisc();
System.out.println("Final order amount = $" +
FinalAmount);
}
}

Accepted Answer

A)  528.00 
B)  580.00 
C)  There is no value because the constructor has an error. 
D)  There is no value because the object order has not been created. 
A)  528.00 
B)  580.00 
C)  There is no value because the constructor has an error. 
D)  There is no value because the object order has not been created.

Question 8

You should not define a class field that is dependent upon the values of other class fields...

Accepted Answer

A)  in order to avoid having stale data 
B)  because it is redundant 
C)  because it should be defined in another class 
D)  in order to keep it current 
A)  in order to avoid having stale data 
B)  because it is redundant 
C)  because it should be defined in another class 
D)  in order to keep it current

Question 9

The java.lang package is automatically imported into all Java programs.

Accepted Answer

A) True 
 B)False

Question 10

In UML diagrams,this symbol indicates that a member is public.

Accepted Answer

A)  / 
B)  @ 
C)  - 
D)  + 
A)  / 
B)  @ 
C)  - 
D)  +

Question 11

A method that stores a value in a class's field or in some other way changes the value of a field is known as a mutator method.

Accepted Answer

A) True 
 B)False

Question 12

A class specifies the ________ and ________ that a particular type of object has.

Accepted Answer

A)  relationships;methods 
B)  fields;object names 
C)  fields;methods 
D)  relationships;object names 
A)  relationships;methods 
B)  fields;object names 
C)  fields;methods 
D)  relationships;object names

Question 13

The scope of a public instance field is

Accepted Answer

A)  only the class in which it is defined 
B)  inside the class,but not inside any method 
C)  inside the parentheses of a method header 
D)  the instance methods and methods outside the class 
A)  only the class in which it is defined 
B)  inside the class,but not inside any method 
C)  inside the parentheses of a method header 
D)  the instance methods and methods outside the class

Question 14

A class's responsibilities include

Accepted Answer

A)  the things a class is responsible for doing 
B)  the things a class is responsible for knowing 
C)  both A and B 
D)  neither A or B 
A)  the things a class is responsible for doing 
B)  the things a class is responsible for knowing 
C)  both A and B 
D)  neither A or B

Question 15

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

Accepted Answer

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

Question 16

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

Accepted Answer

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

Question 17

Instance methods do not have the key word static in their headers.

Accepted Answer

A) True 
 B)False

Question 18

When an object is created,the attributes associated with the object are called

Accepted Answer

A)  instance fields 
B)  instance methods 
C)  fixed attributes 
D)  class instances 
A)  instance fields 
B)  instance methods 
C)  fixed attributes 
D)  class instances

Question 19

In UML diagrams,this symbol indicates that a member is private .

Accepted Answer

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

Question 20

In your textbook the general layout of a UML diagram is a box that is divided into three sections.The top section has the _______;the middle section holds _______;the bottom section holds _______.

Accepted Answer

A)  class name;attributes or fields;methods 
B)  class name;object name;methods 
C)  object name;attributes or fields;methods 
D)  object name;methods;attributes or fields 
A)  class name;attributes or fields;methods 
B)  class name;object name;methods 
C)  object name;attributes or fields;methods 
D)  object name;methods;attributes or fields

What does the following UML diagram entry mean? + setHeight(h : double): void

The following package is automatically imported into all Java programs.

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

True/False: The term "no-arg constructor" is applied to any constructor that does not accept arguments.

The term "default constructor" is applied to the first constructor written by the author of a class.

You should not define a class field that is dependent upon the values of other class fields...

The java.lang package is automatically imported into all Java programs.

In UML diagrams,this symbol indicates that a member is public.

A method that stores a value in a class's field or in some other way changes the value of a field is known as a mutator method.

A class specifies the and that a particular type of object has.

The scope of a public instance field is

A class's responsibilities include

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

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

Instance methods do not have the key word static in their headers.

When an object is created,the attributes associated with the object are called

In UML diagrams,this symbol indicates that a member is private .

In your textbook the general layout of a UML diagram is a box that is divided into three sections.The top section has the ___;the middle section holds _;the bottom section holds _____.

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

Methods

A First Look at Gui Applications

Arrays and the Arraylist Class

A Second Look at Classes and Objects

Text Processing and More About Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Advanced Gui Applications

Applets and More

Recursion

Sorting, Searching, and Algorithm Analysis

Generics

Collections

Array-Based Lists

Linked Lists

Stacks and Queues

Binary Trees, Avl Trees, and Priority Queues

Filters

Exam 6: A First Look at Classes

What does the following UML diagram entry mean? + setHeight(h : double): void

The following package is automatically imported into all Java programs.

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

True/False: The term "no-arg constructor" is applied to any constructor that does not accept arguments.

The term "default constructor" is applied to the first constructor written by the author of a class.

You should not define a class field that is dependent upon the values of other class fields...

The java.lang package is automatically imported into all Java programs.

In UML diagrams,this symbol indicates that a member is public.

A method that stores a value in a class's field or in some other way changes the value of a field is known as a mutator method.

A class specifies the ________ and ________ that a particular type of object has.

The scope of a public instance field is

A class's responsibilities include

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

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

Instance methods do not have the key word static in their headers.

When an object is created,the attributes associated with the object are called

In UML diagrams,this symbol indicates that a member is private .

In your textbook the general layout of a UML diagram is a box that is divided into three sections.The top section has the _______;the middle section holds _______;the bottom section holds _______.

Introduction to Computers and Java

Java Fundamentals

Decision Structures

Loops and Files

Methods

A First Look at Gui Applications

Arrays and the Arraylist Class

A Second Look at Classes and Objects

Text Processing and More About Wrapper Classes

Inheritance

Exceptions and Advanced File Io

Advanced Gui Applications

Applets and More

Recursion

Sorting, Searching, and Algorithm Analysis

Generics

Collections

Array-Based Lists

Linked Lists

Stacks and Queues

Binary Trees, Avl Trees, and Priority Queues

Filters

A class specifies the and that a particular type of object has.

In your textbook the general layout of a UML diagram is a box that is divided into three sections.The top section has the ___;the middle section holds _;the bottom section holds _____.