Vivek Mishra’s Post

A for loop that never ends 😳 No initialization. No condition. No update. Still runs forever. In Java, this behaves exactly like while(true). Miss this in real code and your application could hang. How would you stop this loop without using break? 👇 #Java #SoftwareEngineering #CodingTips #Programming #Developers #CleanCode #TechEducation

Today, I explored one of the most important concepts of Object-Oriented Programming — Inheritance. Inheritance allows one class to acquire the properties and behavior of another class, making code more reusable and structured. I practiced three types of inheritance in Java: 1. Single Inheritance One class inherits from another. #oopsconcept #inheritance #java #codingjourney

Write Java like a senior developer with these 10 tips. Most of these features exist since Java 9–21 but developers still don't use them. Records, var, switch expressions — are you using these? Drop a comment if you knew all 10 👇 #java #programming #softwareengineering #coding #javadeveloper

Today I learned about Abstraction in Java. Abstraction is a core concept of Object-Oriented Programming that focuses on hiding implementation details and showing only essential functionality. To understand it better, I implemented a simple payment system using an abstract class. Through this example, I understood: - How abstract classes work - How implementation is hidden from the user - How different behaviors can be achieved using the same structure I’m continuing to strengthen my understanding of Java and OOP concepts. #Java #Abstraction #OOP #LearningJourney

How does Java manage memory without pointers? String str = new String("Hello"); str = null; When the reference is removed, the object is not deleted immediately. It simply becomes eligible for Garbage Collection. 👉 Eligibility ≠ Immediate deletion Java’s Garbage Collector automatically cleans such objects in the background, making memory management easier and safer. 💡 Understanding this concept helps in writing better and more efficient code. #Java #Programming #JavaDeveloper #Coding #ComputerScience #MemoryManagement

🚀 100 Days of Java Tips — Day 17 Tip: Avoid returning "null" from methods ❌ This is one of the most common causes of bugs in Java. Example: Bad: return null; Better: return Collections.emptyList(); ✅ Or: return Optional.empty(); ✅ Why it matters: • Reduces chances of NullPointerException • Makes your code safer • Improves readability for other developers Real problem: If someone forgets to check for null your code will crash in production ⚠️ Best practice: • Return empty collections instead of null • Use Optional for nullable values • Make your methods predictable Good code is not just working code it’s safe and reliable code Do you return null or avoid it? 👇 #Java #JavaTips #Programming #Developers #BackendDevelopment #CleanCode #SoftwareEngineering #BestPractices #Coding #Tech

Some Java behaviors are simple on the surface… but can lead to unexpected results in real code. Sharing a few that I found worth revisiting 👇 #Java #BackendDevelopment #Programming

Day 45-What I Learned In a Day (JAVA) Today I explored some important concepts related to static in Java: 🔹 Static Method Learned how static methods belong to the class and can be called without creating an object. 🔹 Static Initializer (Static Block) Understood how a static block is executed only once when the class is loaded. 🔹 Single-Line Static Initializer Explored how we can initialize static variables in a single line. 🔹 Multi-Line Static Initializer Learned how to use static blocks for complex initialization logic. Practiced 👇 #Java #Programming #LearningJourney #Coding #100DaysOfCode

->A simple Java concept that’s easy to overlook 👇 Immutable Strings 🔒 String str = "hello"; str.concat(" world"); System.out.println(str); // still "hello" Strings don’t change after creation. Operations like concat() create a new object instead ♻️ str=str.concat(" world"); System.out.println(str); // "hello world" Small detail ⚡ But important while writing logic 🧠 #Java #BackendDevelopment #Programming

🚀 Multithreading in Java – Build Faster & Smarter Applications Ever wondered how modern applications handle multiple tasks at once without slowing down? 🤔 That’s where Multithreading in Java comes in. It allows your program to run multiple threads simultaneously, making your applications faster, more efficient, and highly responsive. 💡 Whether it's background processing, handling multiple users, or improving performance — multithreading is a must-know concept for every Java developer. 📖 I’ve written a complete beginner-friendly guide explaining everything step by step: https://lnkd.in/gHNGnjuP 📱 If you want to learn this article in an app with 60+ subjects and properly structured content, install here: https://lnkd.in/gagnzb8t If you're serious about mastering Java, this is a concept you can't ignore. #Java #Multithreading #Programming #SoftwareDevelopment #BackendDevelopment