Chaithanya Mothkuri’s Post

🚀 Day 43/50 – #50DaysOfCode Today, I learned about the HashSet concept in Java and how it helps store unique elements efficiently. Understanding sets is useful for handling duplicate-free data in real-world applications. ☕💻 #Day43 #JavaFullStack #Java #CCBP #NxtWave #LearningJourney #Consistency

Day 74 – Delete Node in a Linked List Solved a unique linked list problem where only the node to be deleted is given, without access to the head. Key Learnings: Learned a technique to delete a node without accessing the previous node Used value replacement and pointer adjustment instead of traditional deletion Strengthened understanding of in-place linked list manipulation #DSA #Java #LinkedList #ProblemSolving #CodingPractice #DataStructures

🚀 Day 46/50 – #50DaysOfCode Today, I learned about methods and recursion in Java. These concepts help in writing reusable code and solving problems more efficiently. ☕💻 #Day46 #JavaFullStack #Java #CCBP #NxtWave #LearningJourney #Consistency

From fragmentation to efficiency: this company transformed its Java environment with Azul Core, simplifying operations across regions and saving 80% in costs. A must-read case study. https://bit.ly/40dEP24 #Java #AzulCore #IT

#Day02 After understanding how Java code gets executed, the next question is: 👉 Where does the data actually get stored? In JVM, memory is mainly divided into two parts: 🔹 Heap Memory • Used to store objects and class instances • Shared across all threads • Managed by Garbage Collection • Objects generally have longer lifetime 🔹 Stack Memory • Stores method calls and local variables • Each thread has its own stack • Automatically managed • Data exists only during method execution 📌 Key difference: Heap → Stores Objects Stack → Handles Execution (methods & variables) Understanding this difference helps in writing better and more efficient Java applications. #Java #JVM #BackendDevelopment #Learning

🧠 Understanding Java Memory Model (JMM) Why does volatile matter? Java Memory Model defines: ✔ How threads interact through memory ✔ Visibility guarantees ✔ Ordering rules Without volatile: One thread may not see updates made by another thread. volatile ensures: ✔ Visibility ✔ No instruction reordering But: volatile ≠ thread safety for complex operations. Understanding JMM is crucial for writing safe concurrent code. #CoreJava #Multithreading #JavaMemoryModel

Ever tried adding two numbers in Java… and it failed? 🤯 I recently hit this: existingValue + proposedValue ❌ Compilation error! Reason? They were not primitives… they were BigDecimal. Fix was simple, but important: existingValue.add(proposedValue) ✔ That’s when it clicked 👇 In financial or precision-based systems, BigDecimal is not just a choice — it’s a necessity. Also learned: Null handling + proper scaling (setScale) can save you from hidden production bugs. Small issue. Big lesson. Have you faced this before? #ProductionIssues #JavaDeveloper #Java #Debugging

🚀 Mastering Advanced Java step by step! Sharing a simple roadmap covering important Advanced Java topics every Java developer should explore: ✅ Collections Framework ✅ Exception Handling ✅ Multithreading & Concurrency ✅ JVM Internals ✅ Design Patterns ✅ Performance Tuning ✅ Testing Frameworks ✅ Java 8+ Features ✅ Reactive Programming & Microservices Strong fundamentals + advanced concepts + consistent practice = becoming a better developer. Which Advanced Java topic are you currently learning? Mine is exploring JVM internals and concurrency. ☕💻 #Java #AdvancedJava #JavaDeveloper #Programming #SoftwareDevelopment #JVM #Multithreading #DesignPatterns #SpringBoot #CodingJourney

🚀 Day 10/30 – Real-World Java Development Today I came across the concept of polymorphism. In simple terms, it means the same thing behaving differently based on the situation. In real-world applications, this happens more often than we notice. The same action can give different results depending on the context. For example, a single operation like “process” can behave differently for different types of data or scenarios. What I found interesting is — this helps in writing flexible code instead of repeating the same logic again and again. Still trying to connect these concepts with real use cases 👍 #30DaysChallenge #Java #OOP #BackendDevelopment #LearningJourney

🚀 Day 17/30 – LeetCode Java Challenge Back to a cleaner problem today — focused on tracking indices and minimizing distance. 📊 Result: ✔️ Accepted (899/899 test cases) ⚡ Runtime: 4 ms 💾 Memory: Could be improved 💡 What I learned: HashMaps are useful, but not always the most optimal choice Storing unnecessary data increases memory usage There’s often a simpler approach if you think deeper Let’s be honest: This solution works, but it’s not the most efficient in terms of memory. There’s a better way without storing full lists. Day 17 done. More focus on optimizing space, not just time. Bavani k Deepika Kannan Divya Suresh Hari priya B Devipriya R Archana J E Bhavya B Harini B Kezia H Vaishnavi Janaki #LeetCode #Java #DSA #ProblemSolving #Consistency #30DaysOfCode