Morning note ☕ The hard part isn’t writing Java. It’s deciding what should exist as a service at all. The hard part isn’t Angular. It’s deciding what the user should never have to think about. Good systems reduce decisions, for both developers and users. That’s where real engineering shows up. #SystemDesign #Java #Angular #SoftwareEngineering #ProductThinking
Deciding What Should Exist as a Service
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Becoming a Java Full Stack Developer is all about learning the right skills step by step. 🔹 Master Core Java & OOP concepts 🔹 Learn Spring Boot for backend development 🔹 Explore frontend technologies like React or Angular 🔹 Work with databases like MySQL & MongoDB 🔹 Build real-time projects Stay consistent and focus on practical learning to become a job-ready developer. #Java #FullStackDeveloper #JavaDeveloper #SpringBoot #React #WebDevelopment #Programming #SoftwareDevelopment #CareerGrowth
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🚀 Exploring CompletableFuture in Java (When to use & when to avoid) While revisiting Java 8 concepts, I explored CompletableFuture and how it helps in handling asynchronous operations. 💡 A common backend scenario: An API needs to call multiple services: User Service Order Service Payment Service If executed sequentially: getUser(); getOrder(); getPayment(); ⏱️ Total time increases as each call waits for the previous one. 👉 Using CompletableFuture, we can execute them in parallel: CompletableFuture<String> user = CompletableFuture.supplyAsync(() -> getUser()); CompletableFuture<String> order = CompletableFuture.supplyAsync(() -> getOrder()); CompletableFuture<String> payment = CompletableFuture.supplyAsync(() -> getPayment()); CompletableFuture.allOf(user, order, payment).join(); ⚡ Independent tasks run concurrently → better performance ✅ When to use CompletableFuture: Calling multiple independent APIs Microservices communication Improving response time Parallel data fetching ⚠️ When to avoid: When tasks depend on each other Heavy blocking operations (like DB calls without proper thread management) Small/simple logic where async adds complexity 📌 My takeaway: Even if not used directly yet, understanding where it fits helps design better scalable systems. Looking forward to applying this in real projects. Have you used CompletableFuture in your applications? Any challenges or best practices? 👇 #Java #SpringBoot #BackendDevelopment #Microservices #CompletableFuture #JavaDeveloper #SoftwareEngineering
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