📱 Lead Java Developer
📍 Czech Republic
📱 Cezary Orchowski- 0203 0085 212
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Arama Sonuçları: "#JavaDev"
20 sonuç
AI Analytics Engine with Spring AI: Questions to Charts
⏱️ 2.1 hours
⭐ 5.00
👥 111
🔄 Mar 2026
💰 $14.99 → 100% OFF
comidoc.com/udemy/spring-a…
#SpringAI #AIAnalytics #JavaDev #udemy
English
🚀 Java 8 features that changed everything:
✅ Lambda Expressions
✅ Stream API
✅ Optional class
✅ Default methods in Interface
✅ Functional Interfaces
✅ Method References
✅ Date/Time API (LocalDate, LocalDateTime)
Mastered all 7? You're interview-ready! 💪
#Java8 #JavaDev #SpringBoot #JavaWithChandra
English
💡Java: Prefer delegation over inheritance; an "is-a" relationship ties you to the superclass forever
✅ A subclass inherits the parent's entire API; a change upstream can break your code
✅ With delegation, you hold a helper object and forward calls; easy to mock
#JavaDev 🧵
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💡Java: Use Deque instead of Stack for LIFO (last-in, first-out) lists.
✅ Stack is a legacy class, it extends Vector and synchronizes every operation
✅ Deque supports the same push, pop, peek calls
✅ ArrayDeque is faster than Stack
#JavaDev
English
💡 Java switch expressions: no need to add break, but the compiler makes sure you don't forget a case.
✅ One line per case, returns a value, no break needed
✅ Add a new enum constant without a matching case? Compile error, not a silent bug at runtime
#JavaDev
English
💡Java: sealed types close the inheritance graph with permits.
✅ Only listed subtypes may extend the sealed class/interface
✅ Each permitted subtype must be final, sealed, or non-sealed
#JavaDev
English
🚀 Spring Boot: You can implement optimistic locking using the @Version annotation.
✅ Ideal when:
Reads are frequent
Writes are relatively rare
Conflicts are uncommon
❌ Not Ideal when:
Conflicts are frequent
Strict serialization is needed
#SpringBoot #JavaDev
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💡 Java CompletableFuture: chain async steps without blocking the thread on every I/O call.
✅ Chain: supplyAsync, thenApply, thenCompose, thenAccept (fetch user, then orders) #JavaDev
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🚀Spring Cloud: check if a service survives real traffic with Gatling.
✅ Describe a scenario (POST on a /library/book service in the example) and ramp virtual users up over time
✅ Feed randomized data with Faker so every request looks realistic #SpringBoot #JavaDev 🧵
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🚀Spring Cloud: Contract testing with Pact. Make sure two services still agree on their API.
✅ The consumer writes down the response it expects and tests against a mock — the real provider doesn't need to be running 🧵
#SpringBoot #JavaDev
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🚀Spring Cloud: Centralize config with Spring Cloud Config before you copy application.properties everywhere.
✅ Centralize config with Spring Cloud Config instead of copying application.properties everywhere
#SpringBoot #JavaDev 🧵
English
Build Spring Boot apps with tailored boilerplate code in no time. bootify.io/spring-boot/bo… #SpringBoot #JavaDev #REST #Angular
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🚀Spring Cloud: OpenFeign + Circuit Breaker to improve resilience.
✅ @FeignClient calls remote services by name (via Eureka + LoadBalancer)
✅ @CircuitBreaker stops calling a failing service after a threshold #SpringBoot #JavaDev 🧵
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🚀Spring Cloud: Eureka service discovery. Call services by name, not IP.
✅ Each service registers with Eureka on startup
✅ Eureka tracks healthy instances via heartbeats
#SpringBoot #JavaDev 🧵
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