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 vote181 views2 answers
Mono command to compile C# library code
Java
0 vote210 views1 answer
Java compile
Java
0 vote160 views1 answer
Cgange background from button click java fx
Java
0 vote178 views2 answers
Boolean checkbox swing
Java
1 vote204 views1 answer
How to constraint layout parm programmatically in android
Java
1 vote174 views1 answer
Could not find java; set JAVA_HOME or ensure java is in PATH
Java
1 vote174 views1 answer
Menghitung luas lingkaran
Java
26 votes160 views4 answers
Loop list java
Java
0 vote209 views1 answer
Algorithms - count
Java
0 vote180 views1 answer
Goodbye java
Java