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Introduction One of the defining characteristics of modern software architecture is communication. Unlike traditional monolithic applications, today's enterprise systems consist of dozens or even hundreds of independent microservices. Consider a…
Introduction When Java 10 was released in March 2018, it contained only a handful of developer-facing features. The most visible addition was: Local Variable Type Inference commonly known as var.…
Introduction Java 9 is often remembered for one major feature: The Java Platform Module System (JPMS). However, Java 9 introduced many additional enhancements that improved the daily experience of Java…
Introduction One of the major goals of Java 9 was to make everyday programming simpler. While Java 8 introduced Streams, Lambdas, and the Date & Time API, developers still found…
Introduction When Java 9 was released in September 2017, it was one of the most ambitious releases in Java's history. Unlike Java 8, which introduced functional programming features such as…
Introduction When developers discuss Java 8, the conversation almost always revolves around: Lambda Expressions Stream API Optional CompletableFuture Date & Time API These features undoubtedly transformed Java. However, Java 8…
Introduction Modern enterprise applications rarely operate in isolation. A single user request often requires data from multiple systems. Consider an Order Management application. To display a customer's order summary, the…
Introduction Before Java 8, interfaces in Java were simple contracts. An interface could declare methods, but it could not provide implementations. For example: public interface Vehicle { void start(); void…
Introduction If you ask Java developers which exception they have encountered most often in their careers, one answer almost always stands out: NullPointerException For decades, NullPointerException has been one of…
Introduction Every enterprise application needs a way to uniquely identify its data. For many years, relational databases relied on auto-generated numeric identifiers: 1 2 3 4 5 These identifiers work…