What is inheritance in java

Inheritance in java

Inheritance in Java is a mechanism in which one object acquires 
all the properties and behaviors of a parent object.
It is an important part of OOPs (Object Oriented programming system).

What is inheritance in java

Inheritance is the mechanism where the object of one class acquires the property of the object of another class.

Abstract class java

Abstract classes have some special features:

it's impossible to create an instance of an abstract class;
an abstract class can contain abstract methods that must be implemented in non-abstract subclasses;
it can contain fields and non-abstract methods (including static);
an abstract class can extend another class, including abstract;
it can contain a constructor.

Inheritance in java

class Arithmetic {

}
class Adder extends Arithmetic {
    public int add(int a, int b) 
    {
        return a+b;
    }
}

Source: hackerrank.com

Inheritance in Java

Java Inheritance (Subclass and Superclass)
In Java, it is possible to inherit attributes and methods from one class to another. We group the "inheritance concept" into two categories:

subclass (child) - the class that inherits from another class
superclass (parent) - the class being inherited from
To inherit from a class, use the extends keyword.

Inheritance in java

class Arithmetic {
    Arithmetic() {}
}

class Adder extends Arithmetic {
    Adder() {}
    
    int add(int a, int b) {
        return a + b;
    }
}

-1

Source: hackerrank.com

Similar codes

0 vote256 views1 answer
Laravel Please update to at least Node v12.14
Java
-1 vote325 views1 answer
Spring jpa group by query method
Java Spring
87 votes287 views6 answers
Hello world in java
Java
0 vote255 views1 answer
Java india
Java
5 votes276 views2 answers
Select java version linux
Java
-2 votes264 views1 answer
How to import borderlayout
Java
0 vote267 views1 answer
What is instance block in java
Java
0 vote271 views1 answer
Java iterate map and remove
Java
1 vote279 views1 answer
How to remove components from a JFRame java
Java
1 vote253 views1 answer
Java array kürzen
Java