Product guide

Java Coding Problems, 2nd Edition

Java Coding Problems is a 798-page second-edition problem-and-solution book focused on modern Java through JDK 21. Its 257 new challenges cover everyday programming topics and interview-style problems, with a working knowledge of Java recommended.

At a glance

The publisher describes 257 brand-new problems and solutions in this second edition.
Topics include records and record patterns, collections, functional programming, concurrency, garbage collection, and the Socket API.
Coverage addresses Java tools and features from JDK 12 through JDK 21.
Problems emphasize choosing among solutions and considering complexity, performance, and readability.
The listing states that buying the print or Kindle book includes a free PDF eBook.

Price

$41.24Save 25%

Reference price: ~~$54.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

A broad set of problem-and-solution examples supports practice across everyday Java tasks.
Modern Java topics are paired with discussion of when a newer feature is or is not the right choice.
The stated subject matter includes interview questions as well as language features, data structures, and algorithms.

Cons

The listing says working knowledge of Java is required, so this is not positioned as a first programming-language course.
At 798 pages and 2.97 pounds, the print edition is a substantial reference to carry.

Technical specifications

9 specifications

Publication details
Publisher	Packt Publishing
Edition	2nd ed.
Publication date	March 19, 2024
Language	English
Print length	798 pages
ISBN-10	1837633940
ISBN-13	978-1837633944

Dimensions and installation
Weight listed	2.97 pounds
Dimensions	7.5 x 1.8 x 9.25 inches

What to know before buying

The stated 257-problem count and included free PDF eBook are publisher/listing claims. Confirm the selected format and its digital-inclusion terms before purchase. The coverage is described as reaching JDK 21, not later releases.

Who is it for?

A good fit for

Java developers who already know the language and want practice with real-world coding problems.
Readers preparing for Java interview questions while refreshing modern JDK features.
Developers comparing solutions for collections, concurrency, functional programming, and other common tasks.

Less suited to

Complete beginners without working knowledge of Java.
Readers seeking coverage of Java releases beyond JDK 21.

Customer reviews on Amazon

4.3 / 5 · 23 ratings

5 stars68%68%
4 stars21%21%
3 stars0%0%
2 stars0%0%
1 star11%11%

Aggregate ratings lean positive, with most ratings in the top two star categories, but a smaller low-star share indicates that experiences are not uniformly favorable. Without written feedback, the ratings do not reveal what readers liked or disliked. They provide limited guidance on whether the book's problem-based approach suits a particular Java learner.