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Java Coding Problems
Java Coding Problems

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

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Java Coding Problems

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Key benefits

  • 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

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.

Who is this book 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

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

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Mar 19, 2024
Length: 798 pages
Edition : 2nd
Language : English
ISBN-13 : 9781837637614
Category :

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Product Details

Publication date : Mar 19, 2024
Length: 798 pages
Edition : 2nd
Language : English
ISBN-13 : 9781837637614
Category :

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Table of Contents

15 Chapters
Text Blocks, Locales, Numbers, and Math Chevron down icon Chevron up icon
Text Blocks, Locales, Numbers, and Math
Problems
1. Creating a multiline SQL, JSON, and HTML string
2. Exemplifying the usage of text block delimiters
3. Working with indentation in text blocks
4. Removing incidental white spaces in text blocks
5. Using text blocks just for readability
6. Escaping quotes and line terminators in text blocks
7. Translating escape sequences programmatically
8. Formatting text blocks with variables/expressions
9. Adding comments in text blocks
10. Mixing ordinary string literals with text blocks
11. Mixing regular expression with text blocks
12. Checking if two text blocks are isomorphic
13. Concatenating strings versus StringBuilder
14. Converting int to String
15. Introducing string templates
16. Writing a custom template processor
17. Creating a Locale
18. Customizing localized date-time formats
19. Restoring Always-Strict Floating-Point semantics
20. Computing mathematical absolute value for int/long and result overflow
21. Computing the quotient of the arguments and result overflow
22. Computing the largest/smallest value that is less/greater than or equal to the algebraic quotient
23. Getting integral and fractional parts from a double
24. Testing if a double number is an integer
25. Hooking Java (un)signed integers in a nutshell
26. Returning the flooring/ceiling modulus
27. Collecting all prime factors of a given number
28. Computing the square root of a number using the Babylonian method
29. Rounding a float number to specified decimals
30. Clamping a value between min and max
31. Multiply two integers without using loops, multiplication, bitwise, division, and operators
32. Using TAU
33. Selecting a pseudo-random number generator
34. Filling a long array with pseudo-random numbers
35. Creating a stream of pseudo-random generators
36. Getting a legacy pseudo-random generator from new ones of JDK 17
37. Using pseudo-random generators in a thread-safe fashion (multithreaded environments)
Summary
Objects, Immutability, Switch Expressions, and Pattern Matching Chevron down icon Chevron up icon
Objects, Immutability, Switch Expressions, and Pattern Matching
Problems
38. Explain and exemplifying UTF-8, UTF-16, and UTF-32
39. Checking a sub-range in the range from 0 to length
40. Returning an identity string
41. Hooking unnamed classes and instance main methods
42. Adding code snippets in Java API documentation
43. Invoking default methods from Proxy instances
44. Converting between bytes and hex-encoded strings
45. Exemplify the initialization-on-demand holder design pattern
46. Adding nested classes in anonymous classes
47. Exemplify erasure vs. overloading
48. Xlinting default constructors
49. Working with the receiver parameter
50. Implementing an immutable stack
51. Revealing a common mistake with Strings
52. Using the enhanced NullPointerException
53. Using yield in switch expressions
54. Tackling the case null clause in switch
55. Taking on the hard way to discover equals()
56. Hooking instanceof in a nutshell
57. Introducing pattern matching
58. Introducing type pattern matching for instanceof
59. Handling the scope of a binding variable in type patterns for instanceof
60. Rewriting equals() via type patterns for instanceof
61. Tackling type patterns for instanceof and generics
62. Tackling type patterns for instanceof and streams
63. Introducing type pattern matching for switch
64. Adding guarded pattern labels in switch
65. Dealing with pattern label dominance in switch
66. Dealing with completeness (type coverage) in pattern labels for switch
67. Understanding the unconditional patterns and nulls in switch expressions
Summary
Working with Date and Time Chevron down icon Chevron up icon
Records and Record Patterns Chevron down icon Chevron up icon
Arrays, Collections, and Data Structures Chevron down icon Chevron up icon
Java I/O: Context-Specific Deserialization Filters Chevron down icon Chevron up icon
Foreign (Function) Memory API Chevron down icon Chevron up icon
Sealed and Hidden Classes Chevron down icon Chevron up icon
Functional Style Programming – Extending APIs Chevron down icon Chevron up icon
Concurrency – Virtual Threads and Structured Concurrency Chevron down icon Chevron up icon
Concurrency ‒ Virtual Threads and Structured Concurrency: Diving Deeper Chevron down icon Chevron up icon
Garbage Collectors and Dynamic CDS Archives Chevron down icon Chevron up icon
Socket API and Simple Web Server Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Top Reviews
Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.5
(14 Ratings)
5 star 71.4%
4 star 21.4%
3 star 0%
2 star 0%
1 star 7.1%
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Steven Fernandes Aug 05, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Mastering Modern Java is essential for any Java developer keen on understanding JDK 21's latest features. It provides a detailed look at modern Java capabilities, from Records and Sealed Classes to Context-Specific Deserialization Filters, each explained with practical examples to simplify applications in real-world scenarios. The book excels in elucidating advanced data handling, security enhancements, and system architecture optimization. It also covers new APIs and modern garbage collection techniques, making it a valuable resource for enhancing both knowledge and practical skills in Java. Recommended for its thoroughness and real-world applicability.
Amazon Verified review Amazon
Sitesh Pattanaik Mar 29, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
It's quite some time that I have came across an exhaustive book on usage of java focusing on various modern and real-world problems. Here are some of the initial feedback that I have on the book and I am blown by the exhaustiveness and clear explanations.- The reference book provides clear and simple code samples of the problem described.- Covers some of very niche (advanced) things like stages of GC and the epoch cycles.- Consists of a dedicated chapter for Socket and consists of various examples of the usage of Simple Web Server (SWS) for some of the real world scenarios.- For someone coming from Object oriented styled programming paradigm, the book has well explained examples of functional programming in general.The book looks very promising to build a deeper level insight on Java Programming.
Amazon Verified review Amazon
Margarita Apr 01, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
I really like this book. I am a Senior Java engineer and think It will be useful for any Java fan of any level. Book is built like problem-solving that is very actual for nowadays comparing and explanations features from the very first Java versions till new features of Java 21. Besides code examples really good, clear structure and running without any problem, there are examples also with benchmark. It is easy to check theory by your own for me this is very important.The most I liked explanations of project Loom, Virtual threads because it is a completely new theme for me but after book I'm ready to use it in a project.Also found new useful information and problem solving for strings, switch, collections, records.
Amazon Verified review Amazon
Abhi Jul 03, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Just started diving into Java and this book became my coding buddy! Over 250 problems might seem scary at first, but they're like a step-by-step guide. You learn new stuff constantly without feeling overloaded. Plus, it covers all the latest Java features, which feels pretty cool. But my favorite part? It's not just about the answer, it teaches you how to approach problems strategically, thinking about clean and efficient code. Huge bonus for the explanations too, even the trickier concepts were clear. Feeling way more confident with Java thanks to this book! Definitely recommend it for anyone who wants to up their coding game.
Amazon Verified review Amazon
Deepa Jun 05, 2024
Full star icon Full star icon Full star icon Full star icon Full star icon 5
A great reference for Java Coders! Highly recommended if you are an intermediate level programmer who wants to enhance their skills
Amazon Verified review Amazon
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