Question 1

The .class extension on a file means that the file:

Accepted Answer

A)  Contains java source code 
B)  Contains HTML 
C)  is produced by the Java compiler (javac). 
D)  None of the above. 
A)  Contains java source code 
B)  Contains HTML 
C)  is produced by the Java compiler (javac). 
D)  None of the above. C

Question 2

Which of the following statements is false?

Accepted Answer

A)  Each class can be used only once to build many objects. 
B)  Reuse helps you build more reliable and effective systems, because existing classes and components often have undergone extensive testing, debugging and performance tuning. 
C)  Just as the notion of interchangeable parts was crucial to the Industrial Revolution, reusable classes are crucial to the software revolution that has been spurred by object technology. 
D)  Avoid reinventing the wheel-use existing high-quality pieces wherever possible. This software reuse is a key benefit of object-oriented programming. 
A)  Each class can be used only once to build many objects. 
B)  Reuse helps you build more reliable and effective systems, because existing classes and components often have undergone extensive testing, debugging and performance tuning. 
C)  Just as the notion of interchangeable parts was crucial to the Industrial Revolution, reusable classes are crucial to the software revolution that has been spurred by object technology. 
D)  Avoid reinventing the wheel-use existing high-quality pieces wherever possible. This software reuse is a key benefit of object-oriented programming. A

Question 3

Which edition of Java is geared toward developing large-scale, distributed networking applications and web-based applications?

Accepted Answer

A)  Standard Edition. 
B)  Industrial Edition. 
C)  Enterprise Edition. 
D)  Micro Edition. 
A)  Standard Edition. 
B)  Industrial Edition. 
C)  Enterprise Edition. 
D)  Micro Edition. C

Question 4

Which of the following is not one of the six logical units of a computer?

Accepted Answer

A)  Input unit. 
B)  Output unit. 
C)  Central processing unit. 
D)  Printer. 
A)  Input unit. 
B)  Output unit. 
C)  Central processing unit. 
D)  Printer.

Question 5

________ models software in terms similar to those that people use to describe real-world objects.

Accepted Answer

A)  Object-oriented programming 
B)  Object-oriented design 
C)  Procedural programming 
D)  None of the above 
A)  Object-oriented programming 
B)  Object-oriented design 
C)  Procedural programming 
D)  None of the above

Question 6

Which of the following statements is false?

Accepted Answer

A)  Android-the fastest-growing mobile and smartphone operating system-is based on the Windows kernel and uses Java. 
B)  Android is open source and free. 
C)  Android smartphones include the functionality of a mobile phone, Internet client (for web browsing and Internet communication), MP3 player, gaming console, digital camera and more. 
D)  Android handheld devices feature full-color multitouch screens which allow you to control the device with gestures involving one touch or multiple simultaneous touches. 
A)  Android-the fastest-growing mobile and smartphone operating system-is based on the Windows kernel and uses Java. 
B)  Android is open source and free. 
C)  Android smartphones include the functionality of a mobile phone, Internet client (for web browsing and Internet communication), MP3 player, gaming console, digital camera and more. 
D)  Android handheld devices feature full-color multitouch screens which allow you to control the device with gestures involving one touch or multiple simultaneous touches.

Question 7

Which software product release category is "generally feature complete and supposedly bug free, and ready for use by the community?"

Accepted Answer

A)  Alpha. 
B)  Beta. 
C)  Release candidate. 
D)  Continuous beta. 
A)  Alpha. 
B)  Beta. 
C)  Release candidate. 
D)  Continuous beta.

Question 8

Which of the following statements is false?

Accepted Answer

A)  The Ajax applications-development methodology enables you to rapidly develop powerful software applications by combining (often free) complementary web services and other forms of information feeds. 
B)  One of the first mashups combined the real-estate listings provided by www.craigslist.org with the mapping capabilities of Google Maps to offer maps that showed the locations of homes for sale or rent in a given area. 
C)  Twitter offers microblogging web services. 
D)  Foursquare offers mobile check-in web services. 
A)  The Ajax applications-development methodology enables you to rapidly develop powerful software applications by combining (often free) complementary web services and other forms of information feeds. 
B)  One of the first mashups combined the real-estate listings provided by www.craigslist.org with the mapping capabilities of Google Maps to offer maps that showed the locations of homes for sale or rent in a given area. 
C)  Twitter offers microblogging web services. 
D)  Foursquare offers mobile check-in web services.

Question 9

The software that contains the core components of the operating system is the ________.

Accepted Answer

A)  colonel. 
B)  central processing unit 
C)  core 
D)  kernel. 
A)  colonel. 
B)  central processing unit 
C)  core 
D)  kernel.

Question 10

Java was originally developed for:

Accepted Answer

A)  Operating systems development. 
B)  Intelligent consumer devices. 
C)  Personal computers. 
D)  Distributed computing. 
A)  Operating systems development. 
B)  Intelligent consumer devices. 
C)  Personal computers. 
D)  Distributed computing.

Question 11

Which of the following statements is true?

Accepted Answer

A)  Interpreted programs run faster than compiled programs. 
B)  Compilers translate high-level language programs into machine language programs. 
C)  Interpreter programs typically use machine language as input. 
D)  None of the above. 
A)  Interpreted programs run faster than compiled programs. 
B)  Compilers translate high-level language programs into machine language programs. 
C)  Interpreter programs typically use machine language as input. 
D)  None of the above.

Question 12

Which statement is false?

Accepted Answer

A)  Classes are reusable software components. 
B)  A class is to an object as a blueprint is to a house. 
C)  Performing a task in a program requires a method. 
D)  A class is an instance of its object. 
A)  Classes are reusable software components. 
B)  A class is to an object as a blueprint is to a house. 
C)  Performing a task in a program requires a method. 
D)  A class is an instance of its object.

Question 13

Which of the following statements is false?

Accepted Answer

A)  Classes (and their objects) encapsulate, i.e., encase, their attributes and methods. 
B)  A class's (and its object's) attributes and methods are intimately related. 
C)  For objects to communicate effectively with one another, each must know how the other object is implemented. 
D)  Information hiding is crucial to good software engineering. 
A)  Classes (and their objects) encapsulate, i.e., encase, their attributes and methods. 
B)  A class's (and its object's) attributes and methods are intimately related. 
C)  For objects to communicate effectively with one another, each must know how the other object is implemented. 
D)  Information hiding is crucial to good software engineering.

Question 14

Today, virtually all new major operating systems are written in:

Accepted Answer

A)  Objective-C. 
B)  C or C++. 
C)  Visual C#. 
D)  Ada. 
A)  Objective-C. 
B)  C or C++. 
C)  Visual C#. 
D)  Ada.

Question 15

Which of the following statements is true?

Accepted Answer

A)  When you drive a car, pressing its gas pedal sends a message to the car to perform a task-that is, to go faster. 
B)  You send messages to an object; each message is implemented as a method call that tells a method of the object to perform its task. 
C)  A program might call a bank-account object's deposit method to increase the account's balance. 
D)  All of the above statements are true. 
A)  When you drive a car, pressing its gas pedal sends a message to the car to perform a task-that is, to go faster. 
B)  You send messages to an object; each message is implemented as a method call that tells a method of the object to perform its task. 
C)  A program might call a bank-account object's deposit method to increase the account's balance. 
D)  All of the above statements are true.

Question 16

Which of the following statements is false?

Accepted Answer

A)  A quadrillion-instruction-per-section computer can perform in one second more than 100,000 instructions for every person on the planet. 
B)  Today's key programming methodology is object-oriented programming. 
C)  The vast majority of the microprocessors produced each year are used in general-purpose computers. 
D)  Computers process data under the control of sets of instructions called computer programs.. 
A)  A quadrillion-instruction-per-section computer can perform in one second more than 100,000 instructions for every person on the planet. 
B)  Today's key programming methodology is object-oriented programming. 
C)  The vast majority of the microprocessors produced each year are used in general-purpose computers. 
D)  Computers process data under the control of sets of instructions called computer programs..

Question 17

Which of the following statements is false?

Accepted Answer

A)  Speaking to your computer is a form of input. 
B)  Playing a video is an example of output. 
C)  A multi-core processor implements several processors on a single integrated-circuit chip. 
D)  Information in the memory unit is persistent-it is retained when the computer's power is turned off. 
A)  Speaking to your computer is a form of input. 
B)  Playing a video is an example of output. 
C)  A multi-core processor implements several processors on a single integrated-circuit chip. 
D)  Information in the memory unit is persistent-it is retained when the computer's power is turned off.

Question 18

A new class of objects can be created conveniently by ________; the new class (called the ________) starts with the characteristics of an existing class (called the ________), possibly customizing them and adding unique characteristicsof its own.

Accepted Answer

A)  inheritance, superclass, subclass. 
B)  composition, subclass, superclass 
C)  inheritance, subclass, superclass 
D)  composition, superclass, subclass 
A)  inheritance, superclass, subclass. 
B)  composition, subclass, superclass 
C)  inheritance, subclass, superclass 
D)  composition, superclass, subclass

Question 19

Which of the following statements is false?

Accepted Answer

A)  Object-oriented programming is today's key programming methodology. 
B)  Java has become the language of choice for implementing Internet-based applications and software for devices that communicate over a network. 
C)  Software commands computer hardware to perform tasks. 
D)  In use today are more than a trillion general-purpose computers and trillions more Java-enabled cellphones, smartphones and other handheld devices. 
A)  Object-oriented programming is today's key programming methodology. 
B)  Java has become the language of choice for implementing Internet-based applications and software for devices that communicate over a network. 
C)  Software commands computer hardware to perform tasks. 
D)  In use today are more than a trillion general-purpose computers and trillions more Java-enabled cellphones, smartphones and other handheld devices.

Question 20

________ is a graphical language that allows people who design software systems to use an industry stan?dard notation to represent them.

Accepted Answer

A)  The Unified Graphical Laguage 
B)  The Unified Design Language 
C)  The Unified Modeling Language 
D)  None of the above 
A)  The Unified Graphical Laguage 
B)  The Unified Design Language 
C)  The Unified Modeling Language 
D)  None of the above

Exam 1: Introduction to Computers, the Internet and Java

The .class extension on a file means that the file:

Which of the following statements is false?

Which edition of Java is geared toward developing large-scale, distributed networking applications and web-based applications?

Which of the following is not one of the six logical units of a computer?

________ models software in terms similar to those that people use to describe real-world objects.

Which of the following statements is false?

Which software product release category is "generally feature complete and supposedly bug free, and ready for use by the community?"

Which of the following statements is false?

The software that contains the core components of the operating system is the ________.

Java was originally developed for:

Which of the following statements is true?

Which statement is false?

Which of the following statements is false?

Today, virtually all new major operating systems are written in:

Which of the following statements is true?

Which of the following statements is false?

Which of the following statements is false?

A new class of objects can be created conveniently by ________; the new class (called the ________) starts with the characteristics of an existing class (called the ________), possibly customizing them and adding unique characteristicsof its own.

Which of the following statements is false?

________ is a graphical language that allows people who design software systems to use an industry stan?dard notation to represent them.

Introduction to Java Applications; Inputoutput and Operators

Introduction to Classes, Objects, Methods and Strings

Control Statements: Assignment, and Operators

Control Statements: Logical Operators

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism and Interfaces

Exception Handling: a Deeper Look

Javafx Graphical User Interfaces

Javafx Gui

Strings, Characters and Regular Expressions

Files, Inputoutput Streams, Nio and Xml Serialization

Generic Collections

Lambdas and Streams

Recursion

Searching, Sorting and Big O

Generic Classes and Methods: a Deeper Look

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

Swing Gui Components

Graphics and Java 2d

Networking

Java Persistence Api Jpa

Javaserver Faces Web Apps

Javaserver Faces Web Apps

Swing Gui Components

Filters

A new class of objects can be created conveniently by ; the new class (called the ) starts with the characteristics of an existing class (called the ), possibly customizing them and adding unique characteristicsof its own.