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).

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

Inheritance in java

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

class Adder extends Arithmetic {
    Adder() {}
}

-1

Source: hackerrank.com

Inheritance in java

it is used to define relationship between two class, 
which a child class occurs all the properties and
  behaviours of a parent class. 
Provides code reusability.
Ex: in my framework I have a TestBase 
class which I store 
all my reusable code and methods.
  My test execution classes and 
elements classes will extend the 
TestBase in order to reuse the code.

-1

Similar codes

0 vote205 views1 answer
Ciclo for para percorere duas listas java
Java
3 votes216 views3 answers
Spring xml
Java
1 vote254 views6 answers
Convert code from kotlin to java
Java
0 vote190 views1 answer
Android autocompletetextview hashmap
Java
0 vote189 views1 answer
Java loop throug gson JsonElement
Java
0 vote187 views1 answer
Plus One Java
Java
3 votes193 views4 answers
Get sha1 key from keystore
Java
0 vote153 views1 answer
Run app by package android
Java
0 vote227 views1 answer
Android:windowLightStatusBar programmatically
Java
0 vote220 views1 answer
Splay tree java implementation
Java