The ByteSized Logic

Inheritance in Java: Single, Multilevel & Hierarchical (With Examples) ✨ Quick Summary In this post, you’ll learn what Inheritance is in Java and how one class can acquire properties and methods of another class. We will cover single inheritance , multilevel inheritance , and hierarchical inheritance with easy examples. Java OOP Inheritance OOP Concepts In our previous post, we learned about Encapsulation and how to protect data using getters and setters . Now it’s time to learn another powerful OOP concept: Inheritance . 1) What is Inheritance? Inheritance means one class (child class) can acquire the properties and methods of another class (parent class). Inheritance helps you: ✅ Reuse code ✅ Reduce duplicate code ✅ Create a clean class structure In Java, we use the keyword extends for inheritance. 2) Example of Single Inheritance Single inheritance means: one child class inherits from o...

Encapsulation in Java: Getters and Setters (With Examples) ✨ Quick Summary In this post, you’ll learn what Encapsulation is in Java and why it is important in OOP . We will understand private variables , getters , setters , and real examples to make your code more secure and professional. Java OOP Encapsulation Getter / Setter In our previous post, we learned about Java Constructors . Now let’s learn one of the most important OOP concepts: Encapsulation . 1) What is Encapsulation? Encapsulation means: ✅ Wrapping data (variables) and methods into a single unit ( class ) ✅ Hiding the data using private ✅ Accessing the data using public getter and setter methods Encapsulation is used to make your code: ✅ More secure ✅ More controlled ✅ More professional 2) Why do we use private variables? If variables are public, anyone can change them directly: student.age = -10; // wrong but possible if...

Java OOP Concepts: Class and Object (Beginner Guide with Examples) ✨ Quick Summary In this post, you’ll learn the basics of Object -Oriented Programming (OOP) in Java . We will cover what a Class is, what an Object is, how to create them, and understand OOP with simple real-life examples. Java OOP Class Object In our previous post, we learned about Java Methods and how to create reusable code. Now it’s time to start the most important part of Java: Object-Oriented Programming (OOP) . Java is an OOP-based language , which means Java programs are built using: ✅ Classes ✅ Objects ✅ Methods ✅ Inheritance, Polymorphism, Encapsulation, Abstraction In this post, we will start with the basics: Class and Object . 1) What is a Class? A Class is like a blueprint or template. It defines what an object will have. Example: A class is like a blueprint of a Car . The blueprint contains: Car name Car col...