Java

Model Java domains cleanly with records and sealed classes. Learn 10 practical patterns for immutable, type-safe, expressive code. See real examples now.

Master Java Streams with 10 expert techniques—filter, group, flatten, and aggregate data efficiently. Write cleaner, faster Java code. Read the full guide now.

Migrate from Java 8 to Java 21 with confidence. Learn how to replace deprecated APIs, adopt records, sealed classes, and modules step by step. Start upgrading today.

Master Java performance with JMH: 10 proven benchmarking strategies to measure, optimize, and write faster Java code backed by real data. Start optimizing today.

Protect your Java apps from common attacks. Learn 10 proven security patterns—from input validation to encryption—with real code examples you can apply today.

Learn 10 Java testing patterns that catch bugs before production. From Given-When-Then to Testcontainers, discover practical techniques with real code examples.

Learn 10 proven Java logging patterns — from structured JSON to centralized tracing — to debug faster and prevent production outages. Start improving your logs today.

Learn how Java 21 virtual threads and structured concurrency simplify concurrent programming. Write clean, sequential code that handles millions of tasks efficiently.

Learn 10 proven Java error-handling techniques—from structured exceptions to circuit breakers—that keep your application running when failures strike. Read now.

Optimize Java apps for production with 10 proven JVM tuning techniques—GC selection, heap sizing, JFR profiling, and more. Start improving performance today.

Learn how to build fast, reliable Java APIs with Spring Boot. From caching to JWT security and rate limiting, discover proven techniques to scale with confidence.

Learn how to debug live Java applications using heap dumps, thread analysis, GC logs, and distributed tracing. Diagnose production issues without downtime.