Narendra Gangwar
@one_narendra
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7+ yrs exp in Java, Spring Boot, Microservices, Kafka & more , Exp: Impetus | Xebia | Accenture | Wipro, DM @optionalcode for personal coaching inquiries
Gurugram
Joined April 2016
RT @OptionalCode: Spring Profiles – Environment-Specific Config Made Easy!. #spring #java #springboot #springprofiles #developer #softwared….
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RT @OptionalCode: Use @Bean to register external classes in Spring!. #java #spring #springboot #bean #configuration #dependencyinjection #t….
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RT @OptionalCode: Component Scan in Spring – How does Spring find your Beans?. #java #spring #springboot #componentscan #annotations #depen….
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RT @OptionalCode: Bean Scopes in Spring – What, Why, and When?. #java #preparation #engineering #corporate #instadaily #instagood #like #fo….
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RT @OptionalCode: Inversion of Control in Spring – with ApplicationContext & BeanFactory. Spring implements IoC using BeanFactory and Appli….
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RT @OptionalCode: Constructor vs Setter Injection in Spring – What’s the difference? n What do you prefer?. #java #spring #dependencyinject….
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RT @OptionalCode: Want to exclude Tomcat from Spring Boot starter-web?. #java #springboot #web #tomcat #interview #preparation #developers….
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RT @OptionalCode: Spring vs Spring Boot — Which one’s better & why?. #java #spring #springboot #coding #developers #engineering #optionalco….
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RT @OptionalCode: Does an exception thrown from finally override the one from try? 🤔 Yes! ❌ The finally exception replaces the try exceptio….
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RT @OptionalCode: ✔ throw – Used to explicitly throw an exception (e.g., throw new NullPointerException();). ✔ throws – Declares that a met….
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RT @OptionalCode: ✔ ClassNotFoundException – Occurs when a class is not found at runtime.✔ NoClassDefFoundError – Happens when a class was….
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RT @OptionalCode: Does System.exit(0) in try let finally execute? ❌ . No! JVM terminates immediately, skipping finally block execution. 🚀….
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RT @OptionalCode: Can we catch an exception thrown from a static block? 🤔 . No, it must be handled inside the block itself—otherwise, the c….
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RT @OptionalCode: Can we catch NullPointerException in a catch block? 🤔 Yes, but should you? ❌ . Handling it hides bugs—fix the root cause….
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RT @OptionalCode: ✔ Checked Exception – Must be handled .✔ Unchecked Exception – Occurs at runtime .✔ Error – Severe issues, can’t be recov….
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RT @OptionalCode: How does cloning work with arrays? 📌 . Shallow copy: array.clone() creates a new array but copies references for objects.….
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RT @OptionalCode: PUT vs. PATCH : What’s the difference?. #java #developers #engineering #daily #coding #corporate #optionalcode #intervie….
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RT @OptionalCode: Do constructors have name or return types missing ? . #java #developers #engineering #daily #coding #corporate #optional….
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