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Inheritance is a core concept in Object-Oriented Programming (OOP) that allows one class (subclass) to inherit the properties and methods of another class (superclass). This promotes code reusability, abstraction, and polymorphism. In Java, inheritance is implemented using the extends keyword for classes and the implements keyword for interfaces.
Types of Inheritance in Java
Java supports several types of inheritance:
Single Inheritance: A subclass inherits from a single superclass. This is the simplest form of inheritance.
class Vehicle {void start() {System.out.println("Vehicle starts");}}class Car extends Vehicle {void drive() {System.out.println("Car drives");}}public class Main {public static void main(String[] args) {Car car = new Car();car.start(); // Inherited from Vehiclecar.drive();}}Gekopieerd.✕KopiërenMultilevel Inheritance: A class inherits from a class that is already a subclass of another class.
Java Inheritance (With Examples) - Programiz
Meer bekijken op programiz.com- The most important use of inheritance in Java is code reusability. The code that is present in the parent class can be directly used by the child class.
- Method overriding is also known as runtime polymorphism. Hence, we can achieve Polymorphism in Java with the help of inheritance.
Java Inheritance (Subclass and Superclass) - W3Schools
To inherit from a class, use the extends keyword. In the example below, the Car class (subclass) inherits the attributes and methods from the Vehicle class (superclass):
Guide to Inheritance in Java - Baeldung
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To implement (use) inheritance in Java, the extends keyword is used. It inherits the properties (attributes or/and methods) of the base class to the derived class.
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