Microservices have become a popular system architectural pattern, with nearly 49% of software professionals using them daily. In the Java landscape, microservices allow developers to build and deploy applications modularly, enabling independent development, deployment, and scaling of individual services. Each microservice is designed to perform a specific business function and can be developed, deployed, and scaled separately. Microservices in Java use existing web protocols such as HTTP/REST, messaging queues, or newer communication protocols like GraphQL and gRPC to communicate with each other. This separation of concern makes each microservice responsible for a single business capability and enables better scalability, maintainability, and resilience compared to monolithic architectures. Java is well-suited for building microservices due to its extensive libraries, performance optimizations, and vast ecosystem. The use of Java in microservices has been demonstrated by large user-facing products such as Netflix, Uber, and Amazon, showcasing its adaptability to modern cloud-native architectures. Microservices can be used in various scenarios, including real-time analytics, user authentication, inventory management, and IoT applications. Building a basic Java microservice using the Gradle build tool is a straightforward process that involves setting up a project repository or directory, initializing a Gradle project, implementing an App class, testing the microservice, and exploring further learning resources.