Java Map getOrDefault Method Simplifies Code

Solved “Valid Anagram” problem in Java today 💻 Learned how to efficiently check if two strings are anagrams using: • Sorting approach (clean but O(n log n)) • Frequency array approach (optimized O(n)) 🚀 Key takeaway: Choosing the right approach can significantly improve performance, especially for large inputs. Consistent practice with DSA is helping me strengthen problem-solving skills and think in terms of optimization. #Java #DSA #LeetCode #ProblemSolving #CodingJourney #Programming

📚 New article just published on SYUTHD! 🔖 Java 25 Value Objects: How to Reduce Heap Usage by 50% in High-Throughput Microservices 🏷️ Category: Java Programming 📖 Full article → https://lnkd.in/gZS4GaaZ 👉 Follow our page for more tech tutorials: https://lnkd.in/gsJDptPM 💬 Telegram: https://t.me/nisethtechno 👍 Facebook: https://lnkd.in/gsKv3Dyn #JavaProgramming #Tech #Tutorial #Programming #TechBlog #2026

Another form of polymorphism in Java appears through method overriding. This happens when a child class provides its own implementation of a method that already exists in the parent class. Things that became clear : • method overriding occurs during inheritance • the child class keeps the same method name and parameters as the parent class • the implementation of the method is changed in the child class • the method that runs is decided at runtime • this is known as runtime polymorphism A simple example shows how this works : class Parent { void show() { System.out.println("Parent method"); } } class Child extends Parent { void show() { System.out.println("Child method"); } } When an object of the child class is used, the child’s version of the method is executed. This mechanism allows subclasses to adjust behaviour while still keeping the structure defined by the parent class. #java #oop #programming #learning #dsajourney

Learning Polymorphism helped me understand how a single interface can represent multiple behaviors. In Java, the same method can perform different tasks depending on the object — making code more flexible, reusable, and powerful. Every new concept is another step toward becoming a better developer. 💻✨ #Java #Polymorphism #ObjectOrientedProgramming #CodingJourney #LearningEveryday #Programming #DeveloperLife

Day 14 at Besant Technologies 🚀 Today’s session was focused on Types of Blocks in Java. 🔹 Static Block – Executes once when the class is loaded. Useful for initializing static variables. 🔹 Instance Block – Runs every time an object is created, before the constructor. 🔹 Constructor Block – Used to initialize objects when they are created. 🔹 Method Block – Contains the logic that gets executed when a method is called. Understanding these blocks helps in controlling the flow of execution and writing cleaner, more structured Java programs. Excited to keep learning and improving step by step! #LearningJourney #Java #OOP #Programming #BesantTechnologies

🚀 Day 7 of My Java Learning Journey Today I explored the For-Each Loop in Java — one of the simplest and most powerful ways to iterate through arrays & collections. 🔹 What I Learned: ✔ Clean & readable looping technique ✔ No need to manage index manually ✔ Works perfectly with arrays & collections 💡 Why it’s useful? It reduces code complexity and makes programs more readable — especially when you don’t need the index. 🧠 Key Takeaway: “Write smarter code, not longer code.” 👨🏫 Learning & guidance by Aman Soni Vidhya Code Gurukul 🔥 Consistency is the key — small steps every day lead to big results! #Day7 #Java #ForEachLoop #JavaLearning #CodingJourney #DSA #LearnInPublic #Programming #Consistency

Day 3 | Java & DSA Progress Today’s learning was focused on strengthening my understanding of Strings in Java along with solving a key problem from the NeetCode 150 sheet. 🔹 Explored Strings in depth: String creation & immutability String methods (basic to advanced) StringBuilder vs StringBuffer Conversions, formatting & regex basics 🔹 Practiced some questions: Anagram check First non-repeating character Longest substring without repeating characters String compression & more 🔹 Solved Top K Frequent Elements from NeetCode 150 GitHub repository : https://lnkd.in/gqy2AykW https://lnkd.in/gj7Vqq6q #Java #DSA #LearningInPublic #NeetCode150 #CodingJourney

HashMap vs. LinkedHashMap: Do you know how your Streams behave? 🗺️⚡ In Java, choosing the right Map is only half the battle. The real magic (or the real headache) happens when you start using Stream API to process that data. Which one do you use more often in your daily projects? Let’s chat in the comments! 👇 #Java #StreamAPI #BackendDevelopment #CodingTips #SoftwareEngineering #JavaDeveloper #HashMap #CleanCode #Programming

Today I revised an important Java concept: String Comparison == vs .equals(). 🔹 == operator compares memory references (addresses). 🔹 .equals() method compares the actual content of the strings. Example: • When strings are created using literals, they refer to the same object in the String Constant Pool, so == may return true. • When strings are created using new String(), separate objects are created in heap memory, so == returns false even if the content is the same. Understanding this difference helps avoid common mistakes when comparing strings in Java. Thanks to my mentors for their guidance: Saketh Kallepu Anand Kumar Buddarapu Uppugundla Sairam #Java #StringComparison #JavaBasics #Programming #LearningJourney #Codegnan

🚀 Java Learning Journey – Day 8 Today I learned about Polymorphism in Java, one of the key concepts of Object-Oriented Programming. Polymorphism means one action can be performed in multiple ways. A simple real-world example is a payment system. A customer can make a payment using different methods like Credit Card, UPI, or Cash. Even though the method changes, the core action remains the same: Payment. In Java, polymorphism allows a parent class reference to call different implementations of a method depending on the object type. This makes the code more flexible, reusable, and easier to maintain. Understanding polymorphism helps developers design systems that can easily support multiple behaviors with a single interface. #Java #OOP #Polymorphism #JavaDeveloper #LearningInPublic #Programming #SoftwareDevelopment