Java Program using hierarchical inheritance


In this program, You will learn how to implement hierarchical inheritance in Java.


class A { }

class B extends A { }

class C extends A { }


Example: How to implement hierarchical inheritance in Java

Run it Now
class A {
    int x = 10;
}

class B extends A {

    void display() {
        System.out.println("The value of x into B class is:" + x);
    }
}

class Main extends A {

    void display() {
        System.out.println("The value of x into Main class is:" + x);
    }

    public static void main(String args[]) {
        B obj1 = new B();
        obj1.display();
        Main obj2 = new Main();
        obj2.display();
    }
}

Output:

The value of x into B class is:10
The value of x into C class is:10