1
Introduction to Generics in Java: Why They Exist
Learn why Java Generics exist, their purpose, and how they enhance type safety, reusability, and maintainability in modern Java development.
Java Generics Series
Browse the complete Java Generics tutorial series with example-driven, step-by-step guides.
2
Understanding Type Parameters in Java Generics: <T>, <E>, <K, V> Basics
Master Java generics type parameters <T>, <E>, <K, V>. Learn their purpose, usage in classes, methods, collections, and frameworks with real-world examples.
3
The Benefits of Generics in Java: Type Safety and Reusability
Explore the benefits of Java Generics, focusing on type safety and reusability. Learn how generics improve code quality, collections, APIs, and frameworks.
4
Generic Classes in Java: A Step-by-Step Guide
Learn how to create and use generic classes in Java. This step-by-step guide covers type parameters, wildcards, bounded types, collections, and best practices.
5
Generic Methods in Java: Writing Flexible and Reusable Code
Learn how to write flexible and reusable code with Java generic methods. Covers type safety, wildcards, bounded types, collections, APIs, and best practices
6
Bounded Type Parameters in Java: extends and super Explained
Learn bounded type parameters in Java generics. Understand extends and super, wildcards, PECS principle, best practices, and real-world case studies.
7
The Role of Wildcards in Java Generics: ?, ? extends, ? super
Master wildcards in Java Generics. Learn how ?, ? extends, and ? super work, when to use them, PECS principle, real-world examples, and best practices.
8
Type Inference and the Diamond Operator in Java Generics
Learn Java’s type inference and the diamond operator <> in generics. Understand how they simplify code, improve readability, and enhance API design
9
Generics vs Object Casting in Java: Eliminating ClassCastException
Learn how Java Generics eliminate ClassCastException compared to object casting. Covers type safety, wildcards, PECS principle, and real-world use cases.
10
Limitations of Generics in Java: What You Can’t Do
Learn the limitations of Java Generics. Explore what you can’t do with generics, including type erasure, new T(), arrays, exceptions, and reflection constraints
11
Generics with Collections in Java: Lists, Sets, and Maps
Learn how Java Generics work with Collections Framework. Explore Lists, Sets, and Maps with type safety, PECS principle, wildcards, and best practices.
12
Iterators and Generics in Java: Writing Type-Safe Iteration
Learn how Java Generics work with Iterators for type-safe iteration. Covers Lists, Sets, Maps, wildcards, PECS principle, best practices, and real-world examples
13
Multiple Type Parameters in Java Generics: Real-World Examples
Learn how to use multiple type parameters in Java Generics with real-world examples. Covers Pair, Map, repository patterns, builders, and best practices.
14
Nested Generics in Java: Working with Map<String, List<Integer>>
Learn how to use nested generics in Java with Map<String, List<Integer>>. Covers type safety, PECS, wildcards, type erasure, and real-world case studies.
15
Upper vs Lower Bounds in Java Generics: When to Use extends vs super
Learn the difference between upper and lower bounds in Java Generics. Understand when to use extends vs super with PECS principle, wildcards, and real-world examples
16
Wildcards in Java Generics: Flexibility in Method Parameters
Learn how wildcards in Java Generics provide flexibility in method parameters. Covers ?, extends, super, PECS principle, API design patterns, and best practices
17
Type Erasure in Java: What Happens at Runtime
Learn how Java type erasure works at runtime. Covers generics compilation, raw types, wildcards, reflection, PECS principle, and real-world case studies.
18
Raw Types vs Parameterized Types in Java: Why Raw Types Are Dangerous
Learn the differences between raw and parameterized types in Java. Understand why raw types are unsafe, how generics solve issues, and best practices for type safety
19
Reflection and Generics in Java: Accessing Type Information
Learn how reflection works with Java generics. Explore type erasure, reifiable vs non-reifiable types, ParameterizedType, and real-world use cases in APIs
20
Reifiable vs Non-Reifiable Types in Java Generics Explained
Understand reifiable vs non-reifiable types in Java Generics. Learn why some types exist at runtime while others are erased, with examples and best practices
21
Generics and Polymorphism in Java: Subtyping Rules Explained
Learn Java generics and polymorphism subtyping rules. Understand extends vs super, wildcards, PECS principle, and real-world examples in APIs and collections
22
PECS Principle in Java Generics: Producer Extends, Consumer Super Explained
Master the PECS principle (Producer Extends, Consumer Super) in Java Generics. Learn when to use extends vs super for type-safe and reusable APIs
23
Designing Fluent APIs with Generics in Java: A Complete Guide
Learn how to design fluent APIs with Java Generics. Explore type parameters, bounded types, method chaining, builders, and real-world examples for reusable APIs
24
Recursive Type Bounds in Java Generics: `<T extends Comparable<T>>` Explained
Learn recursive type bounds in Java Generics with `<T extends Comparable<T>>`. Understand self-referential generics, type safety, and real-world examples
25
Self-Referential Generics in Java: F-Bounded Polymorphism Explained
Learn F-Bounded Polymorphism in Java Generics. Understand self-referential generics, recursive type bounds, fluent APIs, and real-world use cases
26
Generics with Enums in Java: Advanced Enum Patterns
Explore advanced enum patterns with Java Generics. Learn self-referential generics, type-safe enums, strategies, and real-world use cases in APIs and frameworks
27
Generics and Annotations in Java: Combining for Flexibility
Learn how to combine Generics and Annotations in Java for flexible, type-safe APIs. Explore validation frameworks, dependency injection, and advanced patterns
28
Effective Use of Wildcards in Java Generics for Public APIs
Master the effective use of wildcards in Java generics for designing robust, flexible, and type-safe public APIs. Learn ? extends, ? super, and PECS best practices
29
Generics and Exceptions in Java: Why You Can’t Create new T()
Understand why `new T()` is not allowed in Java generics, exploring type erasure, exceptions, and best practices for designing generic APIs.
30
How the Compiler Handles Generics Behind the Scenes
Learn how the Java compiler processes generics, from type erasure to bytecode translation. Understand type safety, runtime behavior, and best practices
31
Generics in the Java Collections Framework Internals
Dive deep into how generics power the Java Collections Framework. Learn about type safety, wildcards, PECS, and internal design with real-world examples
32
Generics in Popular Frameworks: Spring, Hibernate, Guava
Explore how popular frameworks like Spring, Hibernate, and Guava use Java generics for type safety, reusability, and clean API design
33
Designing Domain-Specific Libraries with Generics in Java
Learn how to design domain-specific libraries with Java Generics. Covers type safety, reusability, bounded types, wildcards, PECS, case studies, and best practices
34
Performance Considerations of Generics in Java for High-Performance Applications
Learn the performance impact of Java Generics with insights into type erasure, wildcards, PECS, type inference, and best practices for designing efficient generic APIs
35
Migration Strategies: Converting Legacy Java Code to Generics for Type Safety and Reusability
Learn practical strategies for migrating legacy Java code to generics. Improve type safety, reusability, and maintainability with step-by-step examples and best practices
36
Advanced Type Inference Rules in Java 8 and Beyond for Generics and Fluent APIs
Master advanced type inference rules in Java 8+ with examples on generics, streams, diamond operator, lambdas, and fluent API design for type-safe programming
37
Generics with Streams and Functional Interfaces in Java 8+ Explained with Examples
Learn how Java Generics work with Streams and Functional Interfaces. Covers type inference, wildcards, PECS, and best practices for modern Java development
38
Complex Nested Generics in Java: Strategies for Readability and Maintainability
Learn how to manage complex nested generics in Java. Explore readability strategies, best practices, anti-patterns, and maintainable designs with real-world examples
39
Common Pitfalls with Java Generics (and How to Avoid Them) for Safer, Cleaner Code
Discover the most common pitfalls with Java Generics and learn how to avoid them. Covers raw types, wildcards, type erasure, PECS, and best practices for safer code
40
Best Practices and Design Principles for Java Generics in Modern Development
Learn the best practices and design principles for using Java Generics. Covers PECS, bounded types, wildcards, type erasure, and maintainable API design
41
Case Study: Building a Type-Safe Cache with Java Generics for Safer and Reusable APIs
Learn how to design a type-safe cache using Java Generics. Covers type parameters, wildcards, PECS, type erasure, and best practices for reusable API design
42
Case Study: Designing a Flexible Repository Layer with Java Generics for Reusable and Type-Safe Data Access
Learn how to design a flexible, type-safe repository layer using Java Generics. Covers type parameters, wildcards, PECS, type erasure, and best practices
43
Case Study: Implementing Event Handling Systems with Java Generics for Type-Safe Event-Driven Applications
Learn how to implement a type-safe event handling system using Java Generics. Covers type parameters, wildcards, PECS, type erasure, and best practices
44
Case Study: Abstract Factories and Builders with Java Generics for Type-Safe Object Creation
Learn how to implement Abstract Factories and Builders using Java Generics for reusable, type-safe, and maintainable object creation patterns