Learning Java

Introduction

The book "Learning Java" (often found in Russian translation as "Изучаем Java") by Patrick Niemeyer and Daniel Leuck is one of the most authoritative and comprehensive guides to the Java language, published by O'Reilly in 2013. Despite more than a decade having passed since its publication, this book remains a valuable resource for anyone who wants to deeply understand the fundamental principles of Java, its ecosystem, and practical development techniques. In this review, we will thoroughly examine the structure, content, target audience, and strengths of this edition.

What this book is about

"Learning Java" is not just a syntax reference. It is a full-fledged educational course that covers both basic and advanced topics. The book starts with the basics: JDK installation, program structure, data types, control constructs, object-oriented programming (OOP). The authors then smoothly move on to more complex sections: working with collections, input/output streams, multithreading, network programming, database work via JDBC, as well as an introduction to graphical interfaces (Swing) and web technologies (servlets, JSP). Special attention is given to the innovations of Java 7 and 8 (lambda expressions, Stream API, try-with-resources), which makes the book relevant for its time.

Who this book is for

The book is aimed at beginner and intermediate developers who already have basic programming experience in any other language (C, C++, Python) and want to learn Java. It will also be useful for those transitioning from older versions of Java to modern (at the time of release) standards. For absolute beginners in programming, the book may seem challenging due to the density of the material, but with due diligence, it will be accessible to them as well.

What the reader will learn

• Java syntax basics: data types, operators, loops, arrays.
• Object-oriented programming: classes, inheritance, polymorphism, interfaces, abstract classes.
• Exception handling and Assertions.
• Working with collections: List, Set, Map, Queue, their implementations and algorithms.
• Input/output streams: byte and character streams, serialization, NIO.
• Multithreading: Thread, Runnable, synchronization, ExecutorService, Lock, atomic variables.
• Network programming: sockets, URL, HTTP connections.
• Working with databases: JDBC, connection, query execution, transactions.
• Graphical interfaces: basics of Swing (windows, buttons, events, layout managers).
• Web development: servlets, JSP, basics of Java EE.
• Innovations of Java 7 and 8: lambda expressions, Stream API, Optional, try-with-resources, Diamond operator.

Strengths

The main advantage of the book is its depth and systematic approach. The authors do not just list the language's capabilities but explain why a particular construct works the way it does, what pitfalls exist, and how to avoid common mistakes. Each chapter is accompanied by practical code examples that can be tried out immediately. The book is written in a lively, accessible language, without excessive academicism. Special mention should be made of the quality of explanations for complex topics such as multithreading and memory management — they are covered in such detail that even a beginner can understand them. Additionally, the book contains many tips on coding style, performance, and debugging.

Who it is recommended for

We recommend "Learning Java" to anyone who wants to gain a fundamental understanding of Java, rather than just learn the syntax. The book is ideal for self-study and can also be used as supplementary material for university courses. If you are preparing for an interview for a position