Скачать или смотреть What is inheritance in java

Inheritance in Java is a fundamental object-oriented programming (OOP) concept that allows one class (child or subclass) to acquire the properties and behaviors (fields and methods) of another class (parent or superclass). It promotes code reusability, method overriding, and establishes a natural hierarchy between classes.

Java supports single inheritance (a class can inherit from only one superclass) using the extends keyword. The subclass can add new features or override the existing methods of the parent class to provide specific implementations.

There are different types of inheritance in Java:

Single Inheritance: A class inherits from one superclass.

Multilevel Inheritance: A class inherits from a subclass, which in turn inherits from another class.

Hierarchical Inheritance: Multiple classes inherit from the same superclass.


Java does not support multiple inheritance through classes to avoid ambiguity but achieves it using interfaces.

Example:

class Animal {
void sound() {
System.out.println("Animal makes a sound");
}
}

class Dog extends Animal {
void sound() {
System.out.println("Dog barks");
}
}

In this example, Dog inherits from Animal and overrides the sound() method.
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