Java Generics and Collections

A comprehensive guide to type-safe data structures and efficient coding (English Edition)

Meenu Jaiswal, Sunil Gupta

• Publisher: BPB Publications
• Year: 2025
• eBook ISBN: 9789365893663
• Topic: Computer Science
• Subtopic: Programming
• Index: Computer Science

Description
Java generics and the Collections Framework are at the heart of writing efficient, type-safe, and scalable Java applications. Generics are essential for type safety and maximizing code reusability, making your applications less prone to runtime errors. If you want to write code that is not only clean but also performs at its best, mastering these concepts is non-negotiable. This book is your go-to guide for unlocking the full potential of generics and collections, helping you write code that stands out.

This book systematically breaks down the entire subject, beginning with generic classes and methods before exploring advanced bounded types and wildcards. You will explore key Java collections like Sets, Lists, Queues, and Maps by learning the best use cases and implementation techniques for each. You will also tackle thread safety, performance optimization, and extending collections to solve real-world problems efficiently. Furthermore, you will learn about Queue and Deque structures, synchronization techniques, utility classes for sorting and searching, and applying generic algorithms.

By the end of this book, you will be more than just a proficient Java developer; you will be a master of generics and collections. Whether you are optimizing applications, designing robust data structures, or ensuring thread-safe environments, you'll have the skills to build fast, efficient, and maintainable code with confidence.

What you will learn
? Apply generics for type safety in classes, methods, and constructors.
? Work with Java collections like Lists, Maps, and Queues.
? Explore wildcards, subtyping, and bounded types in generics.
? Learn to optimize performance and ensure thread safety.
? Extend and customize collections for real-world use cases.
? Navigate the collections hierarchy using iterable, collection, and wrapper classes.

Who this book is for
This book is for individuals who are looking to improve their use of Java generics and the Collections Framework to write efficient and reusable code. It is specifically designed for backend developers, software engineers, technical architects, and technical leads working on Java-based applications.

Table of Contents
1. Introduction to Generics
2. Bounded Types
3. Generics in Collections
4. Introduction to Collections Framework
5. List Interface and Implementations
6. Map Interface and Implementations
7. Set Interface and Implementations
8. Queue and Deque Interfaces
9. Utility Classes
10. Best Practices with Generics and Collections
11. Real-world Applications
12. Future Trends and Next Steps

Table of contents

• Cover
• Title Page
• Copyright Page
• Dedication Page
• About the Authors
• About the Reviewers
• Acknowledgements
• Preface
• Table of Contents
• 1. Introduction to Generics
• 2. Bounded Types
• 3. Generics in Collections
• 4. Introduction to Collections Framework
• 5. List Interface and Implementations
• 6. Map Interface and Implementations
• 7. Set Interface and Implementations
• 8. Queue and Deque Interfaces
• 9. Utility Classes
• 10. Best Practices with Generics and Collections
• 11. Real-world Applications
• 12. Future Trends and Next Steps
• Index