Tutorials under 'Java Design'

How to Build a Custom HashMap or HashSet in Java – Internals, Code, and Best Practices

Learn how to build a custom HashMap or HashSet from scratch in Java. Understand internal hashing, performance, and use cases with full code examples

Java 21Map Vs SetJava Memory ModelHashSet InternalsCustom HashMapJava 8 StreamsJava CollectionsHashing In JavaJava PerformanceJava Design

Creating Custom Iterable and Iterator in Java – Complete Guide with Examples

Learn how to create your own Iterable and Iterator in Java with full code examples, internal workings, and best practices. Ideal for mastering Java collections.

Java 21List Vs SetJava InterfacesIterableIteratorJava 8 StreamsJava CollectionsCustom CollectionJava DesignIterable Implementation

Microservices Design Patterns Explained – Understanding Monoliths, Microservices, and the Need for Specialized Architecture

Learn what microservices and monoliths are, how they differ, and why modern Java apps need specialized design patterns to solve distributed system challenges

MonorepoSystem DesignDesign PatternsMonolith Vs MicroservicesMicroservices ArchitectureJava MicroservicesSpring BootMicroservicesSoftware ScalabilityJava Design

Anti-Patterns in Java – What to Avoid in Design

Learn the most common anti-patterns in Java development, why they harm your codebase, and how to avoid them for cleaner, maintainable, and scalable software

Java Anti PatternsTechnical DebtCode SmellsSoftware ArchitectureClean CodeJava OOPBad PracticesMaintainabilityJava DesignDesign Mistakes