Java Program using hierarchical inheritance


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


class A { 
   //statement
}

class B extends A { 
    //statement
}

class C extends A { 
    //statement
}

Example: How to implement hierarchical inheritance in java

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 Main class is:10

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