Otavio Santana’s Post

Wrapped up a few Java programs recently focused on input/output handling and conditional logic. The goal wasn’t just to get them working, but to make them maintainable — clear structure, meaningful variable names, and minimal redundancy. Writing clean code early builds the mindset for building scalable systems later. #Java #SoftwareEngineering #CleanCode

It covers a topic that almost every developer has heard about — Domain-Driven Design (DDD) — yet few have truly seen in practice. Read more 👉 https://lttr.ai/AkdNp #DDD #Java #DomainDrivenDesign #NewestBook

🚀 Java Collections: Iterator vs ListIterator — Traversing the Smart Way Once we store data in a Collection, the next big question is: 👉 How do I access or modify each element efficiently? That’s where Iterator and ListIterator come in! 💡 Quick Tip: ✅ Use Iterator for generic collections. ✅ Use ListIterator when you need more control over a list. 📄 Check out this short PDF guide to visualize both in action 👇 #Java #Collections #ListIterator #Iterator #JavaDeveloper #BackendDevelopment #SpringBoot #CodingTips #DattatrayBharde

If your code require more than 60 second to understand then you need to simplify it. easy to understand 100 line of code >>> hard to understand 60 line of code. #SoftwareEngineering #Java #React #IT

Today, I worked on a simple yet fundamental Java program to determine the largest among three numbers entered by the user. KEY POINTS ‣Package & Class Definition ‣User Input Handling ‣Decision Making (Conditional Logic) ‣Comparison Operators ‣Output ‣Resource Management ‣Simplicity and Readability Here is the code snippet!👇 #Java #LearningToCode #Practice #Buildinpublic #JavaDevelopment

BeanPostProcessor & BeanFactoryPostProcessor BeanPostProcessor allows custom logic after bean initialization. It helps modify bean instances right before use. BeanFactoryPostProcessor modifies bean definitions before creation. Useful for adjusting configuration metadata dynamically. Both provide powerful customization for advanced scenarios. #SpringFramework #Java #SoftwareEngineering #BackendDevelopment

Where does your technical debt really hide? Cyclomatic complexity, churn, coupling — Richard Gross demonstrates how to measure and visualize deep problems in large codebases objectively. Read now on JAVAPRO: https://lnkd.in/eENXrUwD #Java #DomainDrivenDesign #LegacyCode

🧠 Day-19: OOPs — Interfaces in Java ✅ What is an Interface? An interface is nothing but a blueprint of a class. It specifies what a class must do, but not how it does it. 🔹 Relationships Class to Class → extends Interface to Interface → extends ✅ (not implements) Class to Interface → implements ✅ Interface to Class → ❌ Not allowed 🔹 Key Points In Java 1.7 and earlier, interfaces provided 100% abstraction — meaning they could only contain abstract methods (no method body). From Java 8 onward, interfaces can include: default methods (with body) static methods (with body) All interface methods are implicitly public and abstract (unless declared default or static). All variables in an interface are public, static, and final by default. 10000 Coders #Java #Interface #OOPs #LearningEveryday #100DaysOfCode #Day19 #CodingJourney

The Java Collection Framework isn't just about data structures - it's about writing cleaner, more efficient, and scalable code. Here's a concise guide I've prepared to simplify its core concepts. Explore. Learn. Implement. #Java #JavaDeveloper #SpringBoot #Collections #LearningJourney #JavaDeveloperCommunity #InterviewPreparation #LearningTogether #TechCommunity