Home > Store

Core Java, Volume I: Fundamentals, 12th Edition

eBook (Watermarked)

  • Your Price: $38.39
  • List Price: $47.99
  • Includes EPUB and PDF
  • About eBook Formats
  • This eBook includes the following formats, accessible from your Account page after purchase:

    ePub EPUB The open industry format known for its reflowable content and usability on supported mobile devices.

    Adobe Reader PDF The popular standard, used most often with the free Adobe® Reader® software.

    This eBook requires no passwords or activation to read. We customize your eBook by discreetly watermarking it with your name, making it uniquely yours.

Also available in other formats.

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



  • Master foundational techniques, idioms, and best practices for writing superior Java code
  • Leverage the power of interfaces, lambda expressions, and inner classes
  • Harden programs through effective exception handling and debugging
  • Write safer, more reusable code with generic programming
  • Improve performance and efficiency with Java's standard collections
  • Build cross-platform GUIs with the Swing toolkit
  • Fully utilize multicore processors with Java's improved concurrency


  • Copyright 2022
  • Pages: 944
  • Edition: 12th
  • eBook (Watermarked)
  • ISBN-10: 0-13-767376-0
  • ISBN-13: 978-0-13-767376-6

The #1 Java Guide for Serious Programmers: Fully Updated through Java 17

"This is the definitive reference and instructional work for Java and the Java ecosystem."

---Andrew BinstockJava Magazine

Core Java, Volume I: Fundamentals, Twelfth Edition, is the definitive guide to writing robust, maintainable code. Whatever version of Java you are using---up to and including Java 17---this book will help you achieve a deep and practical understanding of the language and APIs. With hundreds of realistic examples, Cay S. Horstmann reveals the most powerful and effective ways to get the job done.

This book is written for readers with prior programming experience who are looking for in-depth coverage of the Java language and platform. You'll learn about all language features in detail, including the recent improvements in Java 17. The applied chapters and code examples cover the most up-to-date capabilities of the vast Java library. For 25 years, Core Java has prepared serious programmers for serious Java programming.

This first of two volumes offers in-depth coverage of fundamental Java programming, including object-oriented programming, generics, collections, lambda expressions, concurrency, and functional programming. Classic material for Swing UI programming is included for those who need it. This edition's new content covers text blocks, switch enhancements, records, pattern matching for instanceof, sealed classes, and more.
  • Master foundational techniques, idioms, and best practices for writing superior Java code
  • Leverage the power of interfaces, lambda expressions, and inner classes
  • Harden programs through effective exception handling and debugging
  • Write safer, more reusable code with generic programming
  • Improve performance and efficiency with Java's standard collections
  • Explore simple programs with JShell and assemble complex programs with archives and modules
  • Build cross-platform GUIs with the Swing toolkit
  • Fully utilize multicore processors with Java's powerful concurrency model
See Core Java, Volume II: Advanced Features, Twelfth Edition (ISBN: 978-0-13-787107-0), for expert coverage of Java 17 enterprise features, the module system, annotations, networking, security, and advanced UI programming.
Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details.



Download the code files from the author's site: corejava.zip (3.8 MB .zip)


Author's Site

To access bug lists, sample code, and a List of Frequently Asked Questions, visit the author's site at horstmann.com.

Sample Content

Sample Pages

Download the sample pages (includes Chapter 6)

Table of Contents

Preface xxi
Acknowledgments xxvii

Chapter 1: An Introduction to Java 1
1.1 Java as a Programming Platform 1
1.2 The Java "White Paper" Buzzwords 2
1.3 Java Applets and the Internet 9
1.4 A Short History of Java 10
1.5 Common Misconceptions about Java 13

Chapter 2: The Java Programming Environment 17
2.1 Installing the Java Development Kit 17
2.2 Using the Command-Line Tools 22
2.3 Using an Integrated Development Environment 27
2.4 JShell 30

Chapter 3: Fundamental Programming Structures in Java 35
3.1 A Simple Java Program 36
3.2 Comments 39
3.3 Data Types 40
3.4 Variables and Constants 46
3.5 Operators 51
3.6 Strings 61
3.7 Input and Output 76
3.8 Control Flow 85
3.9 Big Numbers 106
3.10 Arrays 109

Chapter 4: Objects and Classes 125
4.1 Introduction to Object-Oriented Programming 126
4.2 Using Predefined Classes 132
4.3 Defining Your Own Classes 141
4.4 Static Fields and Methods 156
4.5 Method Parameters 163
4.6 Object Construction 170
4.7 Records 181
4.8 Packages 186
4.9 JAR Files 198
4.10 Documentation Comments 204
4.11 Class Design Hints 210

Chapter 5: Inheritance 213
5.1 Classes, Superclasses, and Subclasses 214
5.2 Object: The Cosmic Superclass 235
5.3 Generic Array Lists 251
5.4 Object Wrappers and Autoboxing 259
5.5 Methods with a Variable Number of Parameters 263
5.6 Abstract Classes 265
5.7 Enumeration Classes 271
5.8 Sealed Classes 273
5.9 Reflection 279
5.10 Design Hints for Inheritance 308

Chapter 6: Interfaces, Lambda Expressions, and Inner Classes 311
6.1 Interfaces 312
6.2 Lambda Expressions 338
6.3 Inner Classes 357
6.4 Service Loaders 376
6.5 Proxies 378

Chapter 7: Exceptions, Assertions, and Logging 387
7.1 Dealing with Errors 388
7.2 Catching Exceptions 397
7.3 Tips for Using Exceptions 411
7.4 Using Assertions 415
7.5 Logging 420
7.6 Debugging Tips 441

Chapter 8: Generic Programming 447
8.1 Why Generic Programming? 448
8.2 Defining a Simple Generic Class 450
8.3 Generic Methods 453
8.4 Bounds for Type Variables 454
8.5 Generic Code and the Virtual Machine 457
8.6 Restrictions and Limitations 462
8.7 Inheritance Rules for Generic Types 472
8.8 Wildcard Types 475
8.9 Reflection and Generics 483

Chapter 9: Collections 497
9.1 The Java Collections Framework 498
9.2 Interfaces in the Collections Framework 508
9.3 Concrete Collections 510
9.4 Maps 535
9.5 Copies and Views 548
9.6 Algorithms 558
9.7 Legacy Collections 569

Chapter 10: Graphical User Interface Programming 581
10.1 A History of Java User Interface Toolkits 582
10.2 Displaying Frames 583
10.3 Displaying Information in a Component 590
10.4 Event Handling 614
10.5 The Preferences API 639

Chapter 11: User Interface Components with Swing 647
11.1 Swing and the Model-View-Controller Design Pattern 648
11.2 Introduction to Layout Management 652
11.3 Text Input 658
11.4 Choice Components 667
11.5 Menus 686
11.6 Sophisticated Layout Management 705
11.7 Dialog Boxes 721

Chapter 12: Concurrency 747
12.1 What Are Threads? 748
12.2 Thread States 753
12.3 Thread Properties 757
12.4 Synchronization 764
12.5 Thread-Safe Collections 797
12.6 Tasks and Thread Pools 815
12.7 Asynchronous Computations 830
12.8 Processes 847

Appendix 855

Index 861


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