Shadow Variable Concept

class A

{

int k; 

            {

            System.out.println("Super Class Object is Created");

            }

            A(int j)

            {

            this.k=j;

            System.out.println("Super Class Object is Created with Value K= "+k);

            }

}

class B extends A

{

int k; //shadow variable

            {

            System.out.println("Derived Class Object is Created");

            }

           

            B(int i,int j)

            {

            super(i);

            this.k=j;

            System.out.println("Base Value = "+ super.k+" Derived Value = "+k);

            }

public static void main(String a[])

            {

            System.out.println("Test - 1 : Constructor");

            B b2=new B(20,30);

            }

}

OUTPUT:

E:\java\2015\Lecture\Lecture-2\Shadow Variable>javac A.java

E:\java\2015\Lecture\Lecture-2\Shadow Variable>java B

Test - 1 : Constructor

Super Class Object is Created

Super Class Object is Created with Value K= 20

Derived Class Object is Created

Base Value = 20 Derived Value = 30