Java Inheritance | Java Course
Download as PPTX, PDF1 like410 views
Inheritance in Java is a mechanism where one class acquires properties from another, with the inheriting class referred to as the subclass and the original class as the superclass. The `extends` keyword is used for this purpose, and there are several types of inheritance: single, multilevel, and hierarchical. Examples are provided for each type demonstrating how classes relate to each other in this inheritance structure.
1 of 6
Downloaded 24 times
Java Inheritance | Java Course
- 2. Java Inheritance ● Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. ● The class which inherits the properties of other is known as subclass (derived class, child class) and the class whose properties are inherited is known as superclass (base class, parent class).
- 3. extends keyword ● It is used to inherit the properties of a class. class Parent { } class Child extends Parent { }
- 4. Types of Inheritance - Single Inheritance ● When a class extends another one class only. Class A { } Class B extends A { }
- 5. Types of Inheritance - Multilevel Inheritance ● One can inherit from a derived class, thereby making this derived class the base class for the new class. Class X{ } Class Y extends X{ } Class Z extends Y{ }
- 6. Types of Inheritance - Hierarchical Inheritance ● One class is inherited by many sub classes. Class X{ } Class Y extends X{ } Class Z extends X{ }