42 docs tagged with "java"

Explains the Abstract Factory pattern for creating related object families without coupling code to concrete classes.

Explains the Adapter pattern for bridging incompatible interfaces so existing classes can work together cleanly.

Explains the Bridge pattern for separating abstractions from implementations so both can evolve independently.

Explains the Builder pattern for constructing complex objects step by step with clearer, more maintainable APIs.

Explains the Chain of Responsibility pattern for passing requests through a handler pipeline until one handles them.

Explains the Command pattern for encapsulating requests as objects to support queuing, logging, and undo operations.

Comprehensive collection of operating systems interview questions with detailed answers, covering all major topics from processes to Linux internals.

Explains the Composite pattern for modeling part-whole hierarchies and treating single objects and object groups uniformly.

Explains the Decorator pattern for adding responsibilities to objects dynamically without relying on subclassing.

Explains the Facade pattern for exposing a simple interface over complex subsystems to reduce coupling.

Explains the Factory Method pattern for deferring object creation to subclasses while preserving a common creation contract.

Deep dive into the Java Collections Framework, including core interfaces, implementations, performance traits, and best practices.

Comprehensive guide to Java concurrency, covering threads, synchronization, locks, concurrent utilities, and async programming.

Overview of Java design patterns, their categories, and how they improve maintainability, readability, and software design decisions.

Covers Java fundamentals, including the platform model, syntax, types, control flow, and essential language concepts.

Guide to Java I/O, including stream APIs, NIO channels and buffers, file handling, and I/O model fundamentals.

Curated Java interview questions and answers spanning core language topics, JVM internals, collections, concurrency, and OOP.

A comprehensive reference covering Java fundamentals, collections, concurrency, JVM internals, modern language features, and interview preparation.

Practical guide to modern Java features introduced from Java 8 through Java 21, with emphasis on high-impact language updates.

Guide to JVM internals covering memory layout, garbage collection, class loading, and runtime performance basics.

Virtual memory, paging, segmentation, TLB, page replacement algorithms, and Java heap management with GC fundamentals.

Network stack internals, socket programming, TCP deep dive, IPC mechanisms, and high-performance networking with Java NIO and Netty patterns.

Guide to object-oriented programming in Java, covering encapsulation, inheritance, polymorphism, abstraction, and SOLID principles.

Explains the Observer pattern for propagating state changes to dependent objects through event-style notifications.

A comprehensive knowledge base covering all major operating system concepts, with a focus on Linux internals and Java/JVM perspective.

Deep dive into processes, threads, their lifecycle, memory layout, context switching, and Java/JVM perspective on concurrency primitives.

Explains the Prototype pattern for creating new objects by cloning existing instances instead of rebuilding them from scratch.

Explains the Proxy pattern for controlling access to another object through an intermediary with the same interface.

Explains the Singleton pattern for ensuring a single shared instance and a controlled global access point.

Advanced Spring Boot topics covering security, performance tuning, reactive systems, deployment, and production-ready design.

Deep dive into Spring Boot internals, including auto-configuration, embedded servers, conditional beans, starters, and events.

Overview of Spring Boot, its core benefits, and why it is widely used for modern Java backend and microservice development.

Curated Spring Boot interview questions and answers spanning fundamentals, advanced topics, and real-world production scenarios.

Complete guide to Spring Data JPA, including repositories, entities, query methods, and persistence best practices.

Advanced Spring Framework guide covering bean lifecycle, AOP, data access, reactive programming, and batch processing.

Collection of Spring Framework interview questions and answers covering core concepts, containers, web, data, and architecture topics.

Foundational overview of the Spring Framework, including IoC, dependency injection, modules, and enterprise application development.

Complete guide to Spring MVC covering controllers, request handling, model binding, validation, and REST application structure.

Comprehensive guide to Spring Security, including authentication, authorization, filter chains, and common application security patterns.

Explains the Strategy pattern for swapping algorithms at runtime through a shared interface and composition.

Race conditions, critical sections, mutexes, semaphores, monitors, classic synchronization problems, deadlock detection/prevention, and Java concurrency utilities.

Explains the Template Method pattern for defining an algorithm skeleton while allowing subclasses to customize specific steps.