Code with Java 21

Aaron Ploetz

SKU: 9789355519252

Rs. 719

ISBN: 9789355519993
eISBN: 9789355519252
Authors: Aaron Ploetz
Rights: Worldwide
Edition: 2024
Pages: 434
Dimension: 7.5*9.25 Inches
Book Type: Paperback

Code with Java 21 is a practical journey through one of the world’s most prolific computer programming languages. It is meant to help readers build up their knowledge of common Java programming constructs, data structures, and engineering paradigms. Filled with real-world examples, this book aims to build the reader’s understanding of building software applications with Java.

Seasoned Java developers should buckle in as this book takes a hands-on approach to leveraging popular Java frameworks like Spring and Vaadin to build rich, feature-filled web applications. It also covers building powerful data-driven applications on enterprise-grade databases like PostgreSQL and Apache Cassandra®. This book will also show how to use Java to animate with colorful graphics and even build a simple arcade game.

Around the world, Java runs on billions of devices. After its inception nearly 30 years ago, it remains one of the most popular and sought-after programming languages. Whether you are an aspiring computer hobbyist or want to gain a valuable skill en route to a lucrative career as a software developer, Code with Java 21 should be every developer’s go-to reference for building Java applications.


  • Recap your understanding of fundamental Java programming, including new features of Java 21.
  • Explore how to use Java to interact with relational and NoSQL databases.
  • Learn how to build full-stack web applications with Java.


  • Learn fundamental programming structures with Java.
  • Explore the new features of Java 21.
  • Build Java applications with databases like PostgreSQL and Apache Cassandra®.
  • Learn how to build graphics and simple animations with Java.
  • Leverage frameworks like Spring Boot and Spring Data.
  • Build fully-featured web GUIs with Vaadin.


This book is for current and aspiring software developers who wish to learn or expand their current knowledge base of the Java programming language. While the new features of Java 21 are certainly a focus, this book also shows how to build real-world applications.

1. Getting to Know Java
2. Fundamental Programming Structures
3. Strings, Characters, and Regular Expressions
4. Arrays, Collections, and Records
5. Arithmetic Operations
6. Common Data Structures
7. Working with Databases
8. Web Applications
9. Graphics in Java
10. Final Java Project
Appendix A: References
Appendix B: UTF Conversion Chart
Appendix C: Database Command Reference
Appendix D: Common HTTP Response Codes
Appendix E: Common Color Codes
Appendix F: Garbage Collection

Aaron Ploetz is a developer advocate at DataStax. He has been a professional software developer since 1997 and has a successful history of leading DBA and DevOps teams for startups and Fortune 50 enterprises. He has been named an MVP for Apache Cassandra® three times and has presented at multiple events, including the Fintech keynote at Data Day Mexico City 2023. Aaron frequently answers StackOverflow questions from other developers and has previously authored books on distributed databases. He earned a B.S. in Management/Computer Systems from the University of Wisconsin-Whitewater and an M.S. in Software Engineering (Database Technology emphasis) from Regis University. When not writing or coding, Aaron enjoys fishing, retro video gaming, and skijoring. Aaron and his wife, Coriene, live with their four children in the Twin Cities area.

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