For vs While Loops in Java

Can you spot what happens here? 👇 Set<Integer> set = new HashSet<>(); set.add(1); set.add(1); set.add(2); System.out.println(set.size()); 👉 Output: 2 ✅ Reason? Set does not allow duplicate values. So even though we added 1 twice, it gets stored only once. 💡 Simple concept, but easy to overlook. Have you used Set in your projects? 👇 #Java #CoreJava #Programming #BackendDeveloper #Coding #TechLearning

Day 31- What I Learned In a Day(JAVA) Today, I learned about nested for loops and how they are used in pattern programming. A nested loop is simply a loop inside another loop. The outer loop controls the number of rows, while the inner loop controls what gets printed in each row (columns). 🔹 Outer loop → runs row by row 🔹 Inner loop → runs completely for each row 🔹 This helps in creating patterns like squares, triangles, and pyramids For every single iteration of the outer loop, the inner loop executes fully this is the key idea behind pattern problems. Understanding this concept improved my ability to break down problems step by step and visualize output clearly. I Practiced 16 Patterns 👇 #Java #Programming #Coding #LearningJourney #NestedLoops #PatternProgramming

Day 1 of 30 — C# tip that cleaned up my codebase overnight 🧹 I used to write 5-line null checks. Then I found ?? and ??=. Saved me hours of boilerplate and made code reviews much smoother. Full breakdown is in the image below👇 Which of these do you already use — and what null-handling trick do you swear by? Drop it below 👇 #CSharp #DotNet #CleanCode #SoftwareEngineering #Programming

Want to learn any programming language in 10 days? Focus on fundamentals first: syntax, variables, control flow, functions, and error handling. Then move to modules, functional thinking, and OOP. End with revision and practice. Structure beats motivation. 📕 https://lnkd.in/dYCTvRUF #Programming #Coding #LearnToCode #Developers

Why does the same function behave differently at runtime? That’s not magic — that’s Virtual Functions in C++. One of the most powerful concepts in Object-Oriented Programming, virtual functions enable run-time polymorphism, allowing programs to make decisions while running, not just while compiling. In this poster, I’ve broken down: ✔ What virtual functions really mean ✔ Static vs Dynamic binding (the real game changer) ✔ How base pointers call derived class functions ✔ Internal working: VTable & VPTR (the hidden engine) ✔ Complete example + tricky concepts 💡 If you truly understand virtual functions, you’re not just coding — you’re thinking like a system designer. 🔥 Power Line (Hook for engagement) Most beginners memorize polymorphism. Few actually understand it. Which one are you? #CPP #CPlusPlus #Programming #OOP #SoftwareEngineering #Coding #LearnToCode #Developers #Tech #ComputerScience #CodingJourney #Education #Engineering #Placements #InterviewPrep

Day 25 of Programming Today, I focused on solving problems related to index finding and subsequences — two important concepts that sharpen problem-solving and string manipulation skills. 💡 What I learned: How to find the index of a specific character (k) in a string Understanding first occurrence vs last occurrence Exploring subsequences and how they differ from substrings Generating all possible subsequences using recursion ✨ Key Concepts: Indexing helps in efficient searching within strings A subsequence maintains order but doesn’t require continuity Recursive thinking makes complex problems easier to break down 🧠 Problems I solved: Find the first and last index of a character in a string Count how many times a character appears Check if one string is a subsequence of another Generate all subsequences of a given string Find the longest subsequence under given conditions #Programming #CodingJourney #ProblemSolving #Java #Learning

Understanding SOLID Principles is a key step toward writing clean, maintainable, and scalable code. This visual highlights how proper use of interfaces allows different classes to follow the same contract without breaking functionality. #SoftwareDevelopment #SOLIDPrinciples #Programming #OOP

One class. Multiple ways to initialize. That’s the power of Constructor Overloading in C++. Understanding how objects are created is just as important as how algorithms work. Constructor overloading allows us to design flexible, reusable, and clean code by initializing objects in different ways based on requirements. In this visual, I’ve broken down: ✔ Default Constructor ✔ Parameterized Constructor ✔ Copy Constructor ✔ Real-world usage and memory behavior Mastering this concept is a key step toward writing efficient object-oriented programs and cracking technical interviews. 💡 Smart programmers don’t just write code — they design it. #CPP #Programming #ObjectOrientedProgramming #Coding #CPlusPlus #ComputerScience #LearnToCode #Developers #CodingLife #TechEducation #Engineering #OOP #SoftwareDevelopment #StudentLearning #CodingJourney

💡 C++ Insight — Day 4/100 Most developers get this wrong 👇 int a = 10; int b = a++; std::cout << a << " " << b; What’s the output? 👉 a = 11, b = 10 Why? a++ is post-increment → use first, then increment. int c = ++a; // pre-increment → increment first, then use a++ → use → then increase ++a → increase → then use #CPP #CPlusPlus #Programming #CodingInterview #100DaysOfCode #Developers #CodingTips #TechCommunity #LearnCPP #SoftwareEngineering #EmbeddedSystems #CodeNewbie

day 6 DSA problems and solutions link :- https://lnkd.in/gt8GeiUw topics:- Valid anagram and remove duplicates from sorted array #dsa #problems #thinking #logic #solutions #java #programming