Home > Store

Just Java 2, 6th Edition

Register your product to gain access to bonus material or receive a coupon.

Just Java 2, 6th Edition


  • Sorry, this book is no longer in print.
Not for Sale



Thoroughly entertaining, totally accessible, and completely up-to-date sixth edition of a Java classic.

° Part of Sun Microsystems Press; pre-publication publicity and promotion at JavaOne

° Goes beyond just the key features to provide the most accessible book for programmers coming to Java for the first time

° One of the first books to cover J2SE 1.5 -- and the changes to this spec are rather significant


  • Copyright 2004
  • Dimensions: 7" x 9-1/4"
  • Pages: 848
  • Edition: 6th
  • Book
  • ISBN-10: 0-13-148211-4
  • ISBN-13: 978-0-13-148211-1

The #1 introduction to J2SE 1.5 and enterprise/server-side development!

An international bestseller for eight years, Just Java™ 2 is the complete, accessible Java tutorial for working programmers at all levels. Fully updated and revised, this sixth edition is more than an engaging overview of Java 2 Standard Edition (J2SE 1.5) and its libraries: it’s also a practical introduction to today’s best enterprise and server-side programming techniques. Just Java™ 2, Sixth Edition, reflects both J2SE 1.5 and the latest Tomcat and servlet specifications. Extensive new coverage includes:

  • New chapters on generics and enumerated types
  • New coverage of Web services, with practical examples using Google and Amazon Web services
  • Simplified interactive I/O with printf()
  • Autoboxing and unboxing of primitive types
  • Static imports, foreach loop construct, and other new language features

Peter van der Linden delivers expert advice, clear explanations, and crisp sample programs throughout—including dozens new to this edition. Along the way, he introduces:

  • The core language: syntax, objects, interfaces, nested classes, compiler secrets, and much more
  • Key libraries: date and calendar, pattern matching, network software, mapped I/O, utilities and generic collections
  • Server-side technology: network server systems, a complete tiny HTML Web server, and XML in Java
  • Enterprise J2EE: Sql and JDBC™ tutorial, servlets and JSP and much more
  • Client-side Java: fundamentals of JFC/Swing GUI development, new class data sharing details
Companion Web Site

All the book’s examples and sample programs are available at http://afu.com.

Sample Content

Online Sample Chapter

Static, Final, and Enumerated Types in Java

Table of Contents



I. Language.

1. What Can Java Do for Me?

What Java Does for You: Software Portability.

Why Portability Matters.

Language and Libraries.

One Size Doesn't Fit All.

Some Light Relief-A Java Desktop Application.

2. Introducing Objects.

Downloading and Compiling Java.

What Is a Class?

What Is an Object?

Java Digital Clock Program.



Some Light Relief-Napster and LimeWire.

3. Primitive Types, Wrappers, and Boxing.

Literal Values.







Limited Accuracy of Floating Point Types.



Object Wrappers for Primitives.

Autoboxing and Unboxing.

Performance Implications of Autoboxing.



Language Support for String Concatenation.

String Comparison.

Some Light Relief-Hatless Atlas.

4. Statements and Comments.

Organizing Statements.

Expression Statements.

Selection Statements.

Looping Statements.

Transfer of Control Statements.


Reading the Java API.


Some Light Relief-MiniScribe: The Hard Luck Hard Disk.

5. OOP Part II-Constructors and Visibility.

Polymorphism Is a Long Word for a Short Topic.

Creating New Objects: Constructors.

More About Methods.

Variable-Arity Methods.


How the jdk Finds Classes.

Access Modifiers.


Some Light Relief-It's Not Your Father's IBM.

6. Static, Final, and Enumerated Types.

What Field Modifier static Means.

What Field Modifier final Means.

Why Enumerate a Type?

Statements Updated for Enumerations.

More Complicated Enumerated Types.

Some Light Relief-The Haunted Zen Garden of Apple.

7. Names, Operators, and Accuracy.


Punctuation Terminology.







How Accurate Are Calculations?

Widening and Narrowing Conversions.

What Happens on Overflow?

Some Light Relief-Furby's Brain Transplant.

8. More OOP-Extending Classes.



The Class Whose Name Is Class.


Some Light Relief-The Nerd Detection System.

9. Arrays.

Understanding and Creating Arrays.

Arrays of Arrays.

Have Array Brackets, Will Travel.

The Math Package.

Some Light Relief-Think Big (and Small).

10. Exceptions.

Run-time Internals: The Heap.

Garbage Collection.

Run-time Internals: The Stack.


The Assert Statement.

Further Reading.

Some Light Relief-Making an Exception for You.

11. Interfaces.

What Problem Does an Interface Solve?

Interface java.lang.Comparable.

Interfaces Versus Abstract Classes.

Granting Permission Through an Interface-Cloneable.

What Protected Really Means.

Using Interface Callbacks for GUI Event Handlers.

The Class Double.


Some Light Relief-The Java-Powered Toaster.

12. Nested Classes.

Introduction to Nested Classes.

Nested Static Classes.

Inner Member Classes.

Inner Local Classes.

Inner Anonymous Classes.

How Inner Classes Are Compiled.

The Class Character.


Some Light Relief-The Domestic Obfuscated Java Code Non-Competition.

II. Key Libraries.

13. Doing Several Things at Once: Threads.

What Are Threads?

Two Ways to Obtain a New Thread.

The Lifecycle of a Thread.

Thread Groups.

Four Kinds of Threads Programming.

Some Light Relief-The Motion Sensor Solution.

14. Advanced Thread Topics.

Mutually Exclusive Threads.

Communicating Mutually Exclusive Threads.

Piped I/O for Threads.

Thread Local Storage.

Package java.util.concurrent.

An Aside on Design Patterns.

Further Reading.


Some Light Relief-Are You Certifiable? I Am.

15. Explanation <Generics>.

Terminology Refresher: Parameters Versus Arguments.

The Problem that Generic Code Addresses.

What Generic Code Looks Like.

Generic Interfaces.

Bounds-Requiring a Type Parameter to Implement an Interface or Extend a Parent Class.

Some Light Relief-On Computable Numbers with an Application to the Entscheidungsproblem.

III. Server-side Java.

16. Collections.

Collection API.

List, LinkedList, and ArrayList.

Set, HashSet, and SortedSet.

The Collections Helper Class.

Wildcard Parameters and Generic Methods.

Wildcarding a Generic Parameter.

Generic Methods.

Summary of Collection.

Map, HashMap, and TreeMap.


Some Light Relief-Early Names for Java.

17. Simple Input Output.

Getting to Know Java I/O.

Design Philosophy.

The Class java.io.File.

Keyboard I/O.


Wrapping Additional Output Classes.


Reader Wrappers.

Inputting ASCII Characters and Binary Values.

Input Stream Wrappers.

Further Reading.


Some Light Relief-The Illegal Prime Number!

18. Advanced Input Output.

Random Access File.

Running Commands and Getting Output From Them.

Formatted String Output.

Writing Objects to Disk.

New I/O Package.

Memory Mapped I/O.

File Locking.

Charsets and Endian-ness.


Some Light Relief-The Illegal T-shirt!.

IV. Client Java.

19. Regular Expressions.

Regular Expressions And Pattern Matching.

Calendar Utilities.

Other Utility Classes.

Further Reading.


Some Light Relief-Exchanging Apples And Crays.

20. GUI Basics and Event Handling.

All About Event Handling.

Tips for Slimming Down Handler Code.

Summary of Event Handling.


Some Light Relief-The Mouse That Roared.

21. JFC and the Swing Package.

Java Foundation Classes.

All About Controls (JComponents).

Swing Threads-A Caution!

Swing Components.

More About Swing Components.

Further Reading.


Some Light Relief-The Bible Code.

22. Containers, Layouts, and AWT Loose Ends.

Pluggable Look and Feel.

All About Containers.

Layout in a Container.

Tying up the Loose Ends.


Some Light Relief-Sky View Cafe: A High Quality Applet.

V. Enterprise Java.

23. Relational Databases and SQL.

Introduction to Relational Databases.

Primary and Foreign Keys.


Normal Forms.

Relational Database Glossary.

Download and Install Mckoi.

Basic SQL Primer.

Creating and Populating Tables.

Querying and Retrieving Data.

Subquery Selections.

Result Set of a SELECT Query.

Updating Values.

Deleting Records and Tables.

SQL Prepared Statements and Stored Procedures.


Some Light Relief-Reading the Docs.

24. JDBC.

Introduction to JDBC.

Installing the Mckoi Database Software.

Running the Example Code.

Connecting to the Database.

Executing SQL Statements.

Result Sets.

Batching SQL Statements and Transactions.

Prepared Statements and Stored Procedures.

Complete Example.

Database and Result Set Metadata.

Further Reading.


Heavy Light Relief-In Which "I" Spam Myself.

25. Networking in Java.

Everything You Need To Know about TCP/IP but Failed to Learn in Kindergarten.

A Client Socket in Java.

Sending Email by Java.

A Server Socket in Java.

HTTP and Web Browsing: Retrieving HTTP Pages.

A Multithreaded HTTP Server.

A Mapped I/O HTTP Server.

Further Reading.


Some Light Relief-500 Mile Limit on Email.

26. Servlets and JSP.

Overview of Servlets and JSP.

Why Use Servlets?

Releases and Versions.

Installing the Tomcat Software.

Running the Example Servlets.

Ports and Protocols.

The HTML to Invoke a Servlet.

A Servlet and Its Request/Response.

Servlet Request.

Response to a Servlet Request.

Writing Your Own Servlet.

Servlet Operating Cycle and Threading.

Java Server Pages.

Java Beans in Servlets and JSP.

Last Words on JSP, Beans, and Tag Libraries.

Further Reading.


Some Light Relief-Using Java to Stuff an Online Poll.

27. XML and Java.

XML Versus HTML.

Some Rules of XML.

The Document Type Definition (DTD).

What Is XML Used For?

XML Versions and Glossary.

JAXP Library Contents.

Reading XML With DOM Parsers.

A Program That Uses a DOM Parser.

Reading an XML File-SAX Parsers.

A Program That Uses a SAX Parser.

The Factory Design Pattern.

Design Pattern Summary.

Other Java XML Notes.

Further Reading.


Some Light Relief-View Source on Kevin's Life.

28. Web Services at Google and Amazon.

Web Services Introduction.

Google Web Services.

Amazon Web Services.


Some Light Relief-Googlewhacking.

Appendix A: Downloading Java.
Appendix B: Powers of Two Table.
Appendix C: Codesets.


Download the Index file related to this title.


Submit Errata

More Information

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020