Java

Java

Articles

Java programming guides covering core language features, frameworks, tools, and enterprise development.

Articles in this section

Java Guide: Complete Reference for Modern JVM Development Comprehensive Java reference — language features, JVM architecture, collections, concurrency, build tools, frameworks, … 7 min Java Basics: Syntax, Data Types, Control Flow, and OOP Explained Learn Java from scratch — variables, operators, control structures, classes, inheritance, interfaces, and best practices … 7 min Java OOP Concepts: Inheritance, Polymorphism, Encapsulation, and Abstraction Master object-oriented programming in Java — class hierarchies, interfaces, abstract classes, design principles and … 8 min Java Collections Framework: Lists, Sets, Maps, and Queues Guide Master Java collections — ArrayList, HashMap, TreeSet, concurrent collections, sorting, streams integration, and … 7 min Java Streams API: Functional Data Processing with Lambdas Process collections with Java Streams — map, filter, reduce, flatMap, collectors, parallel streams, and functional … 7 min Java Multithreading: Concurrency, Threads, Synchronization, Locks Write concurrent Java apps — thread lifecycle, synchronized, ReentrantLock, executors, CompletableFuture, fork-join, and … 8 min Java Exception Handling: Try-Catch, Custom Exceptions, Best Practices Master Java error handling — checked vs unchecked exceptions, try-with-resources, custom exceptions, logging, and … 7 min Java JDBC Guide: Database Connectivity, CRUD, and Connection Pools Connect Java to databases — JDBC drivers, DataSource, PreparedStatement, transactions, HikariCP pooling, and … 8 min Java Servlets Guide: Web Apps, Filters, Sessions, and Containers Build web apps with Jakarta Servlets 6 — request/response handling, session management, filters, listeners, security, … 7 min Spring Boot Guide: Microservices, Auto-Configuration, and Production Apps Develop with Spring Boot — auto-configuration, Spring Data, REST APIs, security, and production-ready features. 7 min Java Microservices: Spring Cloud, Service Discovery, and Resilience Build Java microservices with Spring Cloud — service discovery, API gateways, circuit breakers, config servers, and … 7 min Java Testing with JUnit: Unit Tests, Mocking, and Integration Tests Test Java applications — JUnit 5, Mockito, test-driven development, parameterized tests, and integration testing. 8 min Java Build Tools: Maven and Gradle Dependency Management Guide Master Maven and Gradle — lifecycle phases, dependency resolution, multi-module builds, plugins, and CI/CD integration. 7 min Java Enterprise Guide: Jakarta EE, CDI, JPA, and Integration Build enterprise Java apps with Jakarta EE 11, CDI dependency injection, JPA persistence, messaging, batch processing, … 7 min Java Developer Career: Skills, Certifications, and Job Roles Plan your Java career — essential skills, industry certifications, specialization paths, interview prep, and market … 7 min Java Performance Tuning: Optimization Guide Practical guide to Java performance optimization covering JVM tuning, garbage collection, profiling, memory management, … 7 min Java 17, 21, and Beyond: New Features Guide Overview of modern Java features from Java 17 LTS through Java 21 LTS and beyond. Covers records, sealed classes, … 7 min Kotlin vs Java: A Practical Comparison Detailed comparison of Kotlin and Java for backend and Android development. Covers syntax, null safety, coroutines, … 8 min