RT @VKazulkin: New blog post alert 🚨."@Quarkus 3 application on #AWS Lambda- Part 5 Measuring Lambda cold and warm starts with @graalvm Na….

Implementing cdk-nag in Java CDK unit tests .🔹 Apply AwsSolutionsChecks in test setup .🔹 Use CDK Assertions to catch missing security rules. { author: @yvthepief } #DEVCommunity #Java.

Day 1 of my 270-day coding journey: diving into Java with a clear roadmap to grow as a creator, thinker and builder. #DEVCommunity #Java.

Walk through fixing a Java cdk-nag test in AWS CDK, using Amazon Q to surface EC23 warnings and enforce security best practices. { author: @yvthepief } #DEVCommunity #Java.

✅ sync.WaitGroup basics: Add, Done, Wait .✅ memory layout tricks and atomic updates .✅ goroutine coordination internals #DEVCommunity #Java.

Go’s sync.WaitGroup uses Add, Done and Wait to block main goroutine until subtasks complete, relying on atomic counters and semaphores. #DEVCommunity #Java.

Insert and merge a new interval into a sorted, non overlapping list .• Single pass O(n), constant extra space .• Java code example. { author: @vazhathody } #DEVCommunity #Java.

Explore 5 libraries for reading image EXIF data in code, including libheif, exiv2, ExifTool, Leadtools and JDeli. #DEVCommunity #Java.

Learn how to cut cold starts in Quarkus 3 Lambdas by priming DynamoDB with AWS SnapStart. Startup median drops to ~650 ms. { author: @VKazulkin } #DEVCommunity #Java.

Structured string parsing in Java can be brittle with regex or split. StringFormat uses templates for clear, compile-safe extraction. #DEVCommunity #Java.

Jargon-free guide to the Prototype Pattern: clone complex objects instead of rebuilding them and manage deep vs shallow copies cleanly. #DEVCommunity #Java.

Java data types in brief: primitive vs reference, literals, type conversion rules and wrappers. Essential refresher for interviews or quick review. #DEVCommunity #Java.

Trace Java’s journey from Sun’s Oak experiment to today’s Write Once, Run Anywhere staple, driven by bytecode and the JVM. #DEVCommunity #Java.

Java guide to creating a number-guessing game: pick a random 1–100 number, offer 10 attempts and give higher/lower hints. #DEVCommunity #Java.

Add Spring Boot integration tests with MockMvc to go beyond unit tests. Learn when to choose @WebMvcTest or @SpringBootTest. #DEVCommunity #Java.

SeaTunnel's HiveSink leak got fixed by wrapping close() in finally. Learn this and other Java resource management essentials. { author: @ASFSeaTunnel } #DEVCommunity #Java.

Overview of OOP in Java with core principles, class vs object distinctions and practical benefits in real code examples. { author: @ayshriv } #DEVCommunity #Java.

Add simple caching to your Spring Boot app with Redis in Docker .🔹 spring-boot-starter-redis .🔹 @EnableCaching for faster responses. { author: @ayshriv } #DEVCommunity #Java.

Tired of off-by-ones in binary search? Explore a declarative Java API that handles loop details so you can focus on the predicate. #DEVCommunity #Java.

Exploring deeper Java reflection: accessing private fields, invoking hidden methods and leveraging MethodHandles for safer introspection. #DEVCommunity #Java.