Java Method Overriding: Changing Parent Class Behavior

📘 Day 26 | Core Java Series An abstract class in Java provides partial abstraction. It can contain abstract methods (without body) and concrete methods. Key points: ❌ Cannot create object ✔ Can have constructors ✔ Supports inheritance Remember this: Abstract class = partial abstraction 📌 Save this for revision 💬 Feedback is welcome #Java #CoreJava #OOP #AbstractClass #LearningInPublic

📘 Day 25 | Core Java Series Polymorphism is one of the core pillars of Object-Oriented Programming in Java. It allows the same method to behave differently in different situations. Remember this: Overloading → Compile time Overriding → Runtime Once polymorphism is clear, Java OOP concepts start to connect naturally. 📌 Save this for revision 💬 Feedback is welcome #Java #CoreJava #OOP #Polymorphism #LearningInPublic

** Java taught me how computers actually work ** Most people say: “I know Java” But real Java knowledge starts when you understand: How JVM loads classes Why Java is called hybrid (compiled + interpreted) Difference between == and .equals() How memory is managed (Stack vs Heap) Why immutability matters Java doesn’t just teach coding. It teaches problem-solving and design thinking. Still learning. Still improving. Excited for what’s ahead. #JavaDeveloper #JVM #OOP #InterviewPreparation #SoftwareDeveloper #LearningJava MD SADIQUE Sharath R Harshit T

📘 Day 28 | Core Java Series Encapsulation is one of the most important pillars of Object-Oriented Programming in Java. It helps protect data and allows controlled access using methods. Remember this: Encapsulation = Data hiding + Controlled access If this concept is clear, writing secure and maintainable code becomes much easier. 📌 Save this for revision 💬 Feedback is welcome #Java #CoreJava #OOP #Encapsulation #LearningInPublic

Understanding Java Exception Hierarchy — Beyond Just Try-Catch While learning exception handling in Java, I realized that many beginners memorize exceptions without understanding their structure. Here is a simplified hierarchy: -> Object is the root class -> Throwable is the parent of all exceptions and errors # Two main branches: =>Errors -> Serious issues related to JVM -> Usually not handled in application code Example: VirtualMachineError, OutOfMemoryError =>Exceptions <>Checked Exceptions -> Checked at compile time -> Must be handled or declared using throws <>Unchecked Exceptions -> Occur at runtime -> Mostly due to programming mistakes Key learning: Understanding hierarchy makes it easier to decide: -> When to catch exceptions -> When to propagate them -> How Java differentiates compile-time vs runtime problems Special thanks to Prasoon Bidua sir for concept-based explanations. Open to feedback and better explanations. #Java #ExceptionHandling #CoreJava #BackendLearning #LearningInPublic

Option 1: Simple & Clean Today I revised Java Collection Framework 📘 Learned about List, Set, Map and their implementations like ArrayList, HashSet, and HashMap. Collections help in managing data efficiently and make code more powerful and flexible. Learning step by step 🚀 #Java #CollectionFramework #CoreJava #JavaDeveloper #Learning

Hello LinkedIn! Today I focused on understanding Methods in Java, which help in writing reusable and organized code. 📌 What I learned today: ✅ What is a Method? ✅ Method Syntax & Structure ✅ Parameters and Return Types ✅ void vs return methods ✅ Calling methods in a program Methods make programs cleaner, reusable, and easier to maintain. Step by step, improving my Java fundamentals and moving closer to becoming a better developer 💻🔥 Consistency + Practice = Progress 🚀 #Java #OOP #Methods #Programming #LearningJourney #Developer

Day 24 Deep Dive into Java: Exception Handling, Interfaces & Abstraction Today, I explored Java more deeply, focusing on: ✔ Exception Handling ✔ Exception Hierarchy ✔ Interfaces ✔ Abstract Classes Understanding how Java structures its error-handling mechanism through the Throwable hierarchy gave me clarity on how exceptions are classified into: Checked Exceptions (compile-time) Unchecked Exceptions (RuntimeException) Errors (serious system-level issues) I also strengthened my understanding of abstraction by revisiting the difference between Interfaces and Abstract Classes: 🔹 Interfaces define behavior and support multiple inheritance. 🔹 Abstract classes allow partial implementation and can include constructors and instance variables. This learning helped me better understand how Java enforces design principles like abstraction, modularity, and clean architecture. The more I explore core Java concepts, the more I appreciate how thoughtfully the language is structured. Consistent learning. Strong foundations. Continuous improvement. 💻✨ #Java #CoreJava #ExceptionHandling #OOP #Abstraction #Programming #SoftwareDevelopment

Abstract Class in Java In Java, an abstract class is a special type of class that is used to provide a common structure for other classes. It represents an incomplete class, meaning it cannot be instantiated directly. Instead, it serves as a blueprint for subclasses. Abstract classes are mainly used when we want to: Define a base class with shared features Ensure that derived classes follow a specific design Support abstraction in object-oriented programming An abstract class helps in achieving code reusability and maintaining a clear hierarchy in large applications. 🚀 Conclusion Abstract classes play an important role in Java by providing a strong foundation for inheritance and abstraction, making programs more organized and scalable. ✨ Grateful for the support and collaboration from: 🔸 Anand Kumar Buddarapu Sir 🔸Uppugundla Sairam Sir 🔸 Saketh Kallepu Sir #Java #CoreJava #AbstractClass #OOP #JavaProgramming #LearningJava #SoftwareDevelopment

🚀 Day 18 | Java Arrays – Core Java Learning Today, I learned about Arrays in Java, a fundamental data structure used to store multiple values of the same data type efficiently. 🔹 What is an Array? An array is an object in Java that allows storing multiple values under a single variable name. 🔹 Key Points Covered: Arrays store elements of same data type. Types of arrays in Java: 1D Array 2D Array 3D Array Difference between: Regular Arrays (equal number of columns) Jagged Arrays (unequal number of columns) 🔹 Array Declaration Syntax: dataType[] arrayName; 🔹 Example: int[] a; 🔹 Accessing Elements: 1D: a[3] 2D: a[1][0] 3D: a[1][0][2] ✨ Arrays help in writing clean, structured, and efficient code and are widely used in real-world applications. #Day18 #Java #ArraysInJava #CoreJava #Programming #TapAcademy #LearningJourney #SoftwareDeveloper