Uddesh Wani’s Post

🚀 Mastering Arrays and Strings in Java 🚀 Arrays and strings are fundamental in Java, but knowing how to efficiently manipulate them can take your coding skills to the next level. From sorting arrays to manipulating strings, these essential operations are key to writing clean and efficient code. 🔗 Read more: https://lnkd.in/dGh5wPr8 #Java #Coding #ProgrammingTips #JavaDevelopment #Arrays #Strings #TechTips

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

🚀 Java Practice: Longest Substring Without Repeating Characters Today I practiced a classic string problem in Java – finding the Longest Substring Without Repeating Characters. 🔹 Problem Statement: Given a string, find the longest substring that does not contain any repeating characters. 🔹 Approach I Used: I implemented a simple nested loop approach: Start checking substring from each index. Keep adding characters until a duplicate character appears. If a duplicate is found, break the loop. Track the maximum length substring during iteration. 💡 Key Concepts Used: String manipulation Nested loops indexOf() method Conditional logic 🧠 Why this problem is useful? This problem helps strengthen understanding of strings, loops, and algorithmic thinking, which are very important for coding interviews and problem solving. 📌 Example Input: "tessdfgteststest" 📌 Output: Longest substring without repeating characters. #Java #DSA #CodingPractice #ProblemSolving #JavaDeveloper #Programming #LearningJourney

Same method… different behaviors? 🤯 Welcome to Method Overloading in Java! Why write multiple methods when one name can handle it all? ✅ Cleaner code ✅ Better readability ✅ Smarter programming Start thinking like a developer, not just a coder 💻 #Java #Programming #OOP #CodingLife #Developers #LearnToCode

Last post we discussed why String is immutable in Java. So what if you need to modify strings frequently? 🤔 That’s where StringBuilder and StringBuffer come in. Both are mutable, but choosing the right one matters. 👉 StringBuilder = faster for single-threaded use 👉 StringBuffer = thread-safe for shared multithreaded use Swipe → to understand the real difference. 💬 Comment “code” for more Java examples. #Java #Backend #JavaDeveloper #Programming #InterviewPrep #StringBuilder

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

->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

This Java snippet trips up even experienced developers 👇 Integer a = 127; Integer b = 127; Integer c = 128; Integer d = 128; System.out.println(a == b); System.out.println(c == d); One prints true. One prints false. At first glance, both comparisons look identical. Same type. Same assignment. Same operator. So what’s going on? If you know the reason, you’ve got a deeper grasp of how Java actually works under the hood. Drop your explanation below — no Googling 👇 #Java #Programming #SoftwareEngineering #DevCommunity #CodeChallenge

Are You Misusing Inheritance in Java? 🤔 Inheritance is a powerful tool in Java, but are you wielding it correctly? 🚀 Many developers get trapped in the inheritance labyrinth, thinking it's the only way to share code. But here's the kicker: misuse can lead to fragile code that's hard to debug and maintain. 😱 Instead of deep hierarchies, consider composition! It's often a more flexible and safer approach. Ask yourself: Are you using inheritance for convenience or because it actually fits your design? Let's talk about it! How do you approach inheritance vs. composition in your projects? 💬 #Java #programming #softwaredevelopment #inheritance #codingbestpractices

[Part 2]: writing a multithreaded code in Java and not sure which interface/keyword to use? take this: ✅ use Future to represent the result of an async computation and to block or check completion ✅ use CompletableFuture for non-blocking, composable async chaining tasks ✅ use ScheduledExecutorService for periodic or delayed task execution ✅ use synchronized to ensure mutual exclusion on methods or blocks ✅ use volatile to guarantee visibility of changes across threads #multithreading #softwaredevelopment #coding #java