Java Polymorphism Example with UPI and Credit Card

Exploring one of the most powerful concepts in Java — Polymorphism, and I achieved it using Inheritance with a simple Plane program. In Java, polymorphism allows a single object to take multiple forms. Using inheritance and method overriding, I implemented a Plane example where different types of planes (like Cargo Plane and Passenger Plane) show different behaviors even though they share a common parent class. It was really interesting to see how a parent class reference can call different implementations at runtime — making the program dynamic and flexible. A big thank you to TAP Academy for teaching this concept so clearly and effortlessly. The real-time examples, like the Plane program, made it much easier to understand how inheritance and polymorphism work together. Excited to apply these concepts in real-world projects and keep growing 🚀 #Java #OOP #Polymorphism #Inheritance #CodingJourney #Learning #SoftwareDevelopment #TAPAcademy

#Day_13 of My Java Learning Journey – Writing Functions in Java Today I practiced how to create functions (methods) in Java, and I built a simple program to check whether a number is Even or Odd. 🔥 What I learned today: ✔ How to create a boolean function ✔ How to use if-else conditions inside a method ✔ How to return true/false ✔ How to call a method inside the main() function ✔ How to print the result in the console 🧩 Example I worked on: I created a method IfEven(int a) that: Prints whether the number is Even or Odd Returns a boolean value (true for even, false for odd) This helped me understand functions more clearly and how they improve code structure and reusability. #Java #LearningJourney #100DaysOfCode #Coding #Developer #JavaBeginners #OOP #CodeNewbie

Today, I explored one of the core concepts of Object-Oriented Programming — Polymorphism in Java. - Understood how a single interface can represent multiple behaviors. - Practiced method overriding and runtime polymorphism. - Implemented real examples using inheritance and dynamic method dispatch. This concept really changed how I think about writing flexible and scalable code. Sharing a small implementation I worked on. #Java #OOP #Polymorphism #CodingJourney #LearningInPublic #SoftwareDevelopment #TAP TAP Academy

Learning Polymorphism in Java Today I explored one of the core concepts of OOPs – Polymorphism. It allows a single method to perform multiple behaviors depending on the object. 🔹 Covered: Compile-time polymorphism (Method Overloading) Runtime polymorphism (Method Overriding) Real examples with Java code Understanding this concept improves code flexibility, reusability, and scalability. 📘 Sharing my handwritten notes + examples for better understanding. #Java #OOP #Polymorphism #Programming #CodingJourney #Learning #JavaDeveloper #SoftwareDevelopment

📚 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

📘 Day 41 of My Learning Journey Today, I explored two important methods from the java.lang package: getClass() and toString(). 🔹 getClass() Method This method is used to get the runtime class of an object. It helps in understanding the exact class an object belongs to during execution. 🔹 toString() Method This method converts an object into a readable string format. By default, it returns the class name along with the hashcode, but it can be overridden to display meaningful information. 💡 Learning these methods helped me understand how Java represents objects internally and how we can customize their output for better readability. Step by step, improving my understanding of core Java concepts! 🚀 #Java #LearningJourney #Day41 #OOP #Programming #TechSkills

Java Learning Journey – Day 28 Today I explored another core OOP concept — Polymorphism in Java. 🔹 What is Polymorphism? It allows objects to be treated as instances of their superclass, enabling flexibility in code. 🔹 Real Example: An Animal reference can behave like a Dog or Cat depending on the object. 🔹 Types of Polymorphism: • Compile-time → Method Overloading • Runtime → Method Overriding 🔹 Key Benefits: • Flexibility in design • Cleaner and reusable code • Improved maintainability 💡 Key Learning: Polymorphism helps in writing dynamic and scalable applications. Step by step growing in my Java development journey #Java #JavaDeveloper #OOP #Polymorphism #Programming #CodingJourney #SoftwareDevelopment #Hariom #HariomKumar #Hariomcse

📚 New article just published on SYUTHD! 🔖 Java 26 vs. Java 25 LTS: Performance Benchmarks and Migration Guide 🏷️ Category: Java Programming 📖 Full article → https://lnkd.in/g-DmkTDW 👉 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

🚀 Day 35 of My Java Learning Journey Today I explored the range of Multithreading in Java — a key concept for building high-performance applications! 📌 What I learned: Multithreading allows a program to execute multiple tasks simultaneously, improving efficiency and performance. 🔍 Key concepts covered: Creating threads using Thread class and Runnable interface Understanding thread lifecycle (New → Runnable → Running → Terminated) Synchronization to avoid conflicts between threads Managing multiple threads for better resource utilization 💡 Why it matters: Multithreading is essential for: Building responsive applications Performing tasks in parallel Improving CPU utilization and performance ⚡ Key takeaway: Efficient thread management is crucial — improper handling can lead to issues like race conditions and deadlocks. 📈 Slowly leveling up my Java skills and getting closer to writing more optimized and scalable programs! #Java #Multithreading #LearningJourney #Programming #100DaysOfCode

Day 38 of Learning Java Today, I explored how a class executes inside the JVM (Java Virtual Machine). Understanding this lifecycle really helped me see what happens behind the scenes when we run a Java program. 🔹 Class Loading   • The JVM loads the class into memory   • It brings the ".class" file into the system 🔹 Linking Phase  • Verification → Checks bytecode for errors  • Preparation → Allocates memory for static variables (default values like 0)  • Resolution → Replaces symbolic references with actual memory references 🔹 Initialization  • Static variables get their actual assigned values  • Static blocks are executed 🔹 Execution  • Methods start running and the program logic is executed 🔹 Destruction  • Objects are destroyed and memory is cleaned up by the Garbage Collector Static variables first get default values during preparation, and later their actual values during initialization. Thanks to my mentor Ashim Prem Mahto for the clear explanations and for always clearing my doubts. #Java #JVM #LearningJourney #Programming #SoftwareDevelopment #BackendDevelopment #CodingLife #JavaDeveloper #TechLearning #StudentLife