Feb 22 · 14 min read · Decoding System Design: A Deep Dive into Low-Level Design (LLD) vs. High-Level Design (HLD) Understanding High-Level Design (HLD) Concepts High-Level Design (HLD) is a pivotal stage in the software architecture process, focused on providing a broad o...
Join discussionOct 26, 2025 · 7 min read · 🧩 What is Inheritance? Inheritance means one class (child/subclass) can reuse the properties and methods of another class (parent/superclass). It allows you to build new classes on top of existing ones, instead of rewriting code. 🧠 Simple Analogy T...
Join discussionOct 26, 2025 · 9 min read · 🧠 What is Encapsulation? Encapsulation is the bundling of data (variables) and methods (functions) that operate on the data into a single unit — a class. It also means restricting direct access to some components, which is called data hiding. 🔐 In ...
Join discussionOct 26, 2025 · 3 min read · What is Abstraction? Abstraction is the process of hiding implementation details and showing only the essential features of an object. Focus: What an object does, not how it does it. Helps in reducing complexity and increasing code maintainability....
Join discussionOct 26, 2025 · 10 min read · 🔷 What is an Interface? An interface in Java (and many other object-oriented languages) is a contract that defines what a class can do, but not how it does it. It is a reference type that contains only abstract methods (until Java 7), and from Java ...
Join discussionOct 26, 2025 · 9 min read · 🧠 What is abstract in Java? The keyword abstract in Java is used for: Abstract Classes Abstract Methods It enables abstraction, which is one of the four pillars of OOP (along with encapsulation, inheritance, and polymorphism). 📌 1. Abstract Cla...
Join discussionOct 26, 2025 · 8 min read · ⚙️ Understanding the static Keyword in Java (with Simple Examples) The static keyword in Java is one of the most commonly used — yet often misunderstood — features.It allows you to create class-level members that belong to the class itself, not to in...
Join discussionOct 26, 2025 · 5 min read · 🧱 final Keyword in Java (with Simple Examples) In Java, we often want to prevent something from being changed — like a constant value, a method that should never be overridden, or a class that shouldn’t be inherited.That’s where the final keyword co...
Join discussionOct 26, 2025 · 4 min read · 🦸♂️ super Keyword in Java (with Simple Examples) When working with inheritance in Java, you’ll often come across the keyword super.Just like how this refers to the current class, super refers to the parent class (also called the superclass). In thi...
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