Simple Program to implement Multilevel inheritance in Java

 

Multilevel Inheritance:

In the below example their are total three classes each have their own methods and are giving different output . We all know that in some or the other way properties if our parents came in their child taking the same concept the program is taking the properties of their parent class and and also have their own unique properties . We can inherit the parent class in child class my using "extends" keyword . 

Example:

class GrandParents

{

     public static void Age(int age) 

     {

         System.out.println("Age of GrandParents is:"+" "+age);

     }   

}

 class Parents extends GrandParents

 {

     public static void Nationality(String citizenShip) 

     {

         System.out.println("Parents are from:"+" "+citizenShip);

     }    

}

class Child extends Parents

{

     public static void Gender(String gender) 

     {

         System.out.println("Child is a"+" "+gender);

     }  

}

public class Main

{

public static void main(String[] args) 

{

Child. Age(52);

Child. Nationality("India");

Child. Gender("Male");

}

}

In the above code the  Parent class is first inheriting the "Grandparent" class and then further the "Parent" class is inherited by "Child" class  The properties are inherited in the form of different levels that's why it is called as Multi-Level Inheritance. 

In the last inside main method we are calling all the methods of all the other classes by using the Child class that is possible only because we have extended the parents class in child classes.