Java Generics and Collections

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.

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

Meenu Jaiswal is a Java developer with over 13 years of experience in the software industry, contributing to numerous projects across various sectors. Her passion lies in both developing and educating. She is an Oracle Certified Associate Java programmer and holds a full stack engineer certification from IIT Roorkee. She offers advanced Java training sessions focused on practical, real-world applications, and she shares insights on Java, backend programming, and new technologies on LinkedIn. Her expertise spans advanced Java, Spring, Spring Boot, and microservices, which she uses to empower developers in building scalable and efficient solutions.

Sunil Gupta is an architect and software developer with over 30 years of experience in application design and development. He specializes in service-oriented architecture (SOA) and design patterns. With 25 years of expertise in Java programming, he has developed innovative solutions across diverse domains, including Fintech, analytics, marketing, robotics, and CAD/CAM. His experience spans both startups and large enterprises, where he combines deep technical knowledge with a strategic approach to create impactful, high-performance products.