Java Coding Problems: Become an expert Java programmer by solving over 250 brand-new, modern, real-world problems, 2nd Edition

Stay on top of the new Java features (up to JDK 21) and find efficient solutions for your programming woes. With over 250 problems and solutions, you'll learn new ways to deal with real-world coding tasks and answers to common interview questions.

Purchase of the print or Kindle book includes a free PDF eBook
Key Features

Solve Java programming challenges and get interview-ready with the power of modern Java 21
Test your Java skills using language features, algorithms, data structures, and design patterns
Explore tons of examples, all fully refreshed for this edition, meant to help you accommodate JDK 12 to JDK 21

Book Description

The super-fast evolution of the JDK between versions 12 and 21 has made the learning curve of modern Java steeper, and increased the time needed to learn it. This book will make your learning journey quicker and increase your willingness to try Java's new features by explaining the correct practices and decisions related to complexity, performance, readability, and more.

Java Coding Problems takes you through Java's latest features but doesn't always advocate the use of new solutions - instead, it focuses on revealing the trade-offs involved in deciding what the best solution is for a certain problem.

There are more than two hundred brand new and carefully selected problems in this second edition, chosen to highlight and cover the core everyday challenges of a Java programmer.

Apart from providing a comprehensive compendium of problem solutions based on real-world examples, this book will also give you the confidence to answer questions relating to matching particular streams and methods to various problems.

By the end of this book you will have gained a strong understanding of Java's new features and have the confidence to develop and choose the right solutions to your problems.
What you will learn

Adopt the latest JDK 21 features in your applications
Explore Records, Record Patterns, Record serialization and so on
Work with Sealed Classes and Interfaces for increasing encapsulation
Learn how to exploit Context-Specific Deserialization Filters
Solve problems relating to collections and esoteric data structures
Learn advanced techniques for extending the Java functional API
Explore the brand-new Socket API and Simple Web Server
Tackle modern Garbage Collectors and Dynamic CDS Archives

Who this book is for

If you are a Java developer who wants to level-up by solving real-world problems, then this book is for you. Working knowledge of the Java programming language is required to get the most out of this book
Table of Contents

Text Blocks, Locales, Numbers, and Math
Objects, Immutability, Switch Expressions, and Pattern Matching
Working with Date and Time
Records and Record Patterns
Arrays, Collections, and Data Structures
Java I/O: Context-Specific Deserialization Filters
Foreign (Function) Memory API
Sealed and Hidden Classes
Functional Style Programming - Extending APIs
Concurrency - Virtual Threads and Structured Concurrency
Concurrency ‒ Virtual Threads and Structured Concurrency: Diving Deeper
Garbage Collectors and Dynamic CDS Archives
Socket API and Simple Web Server