Single Inheritance and Super Keyword

class A

{

int k;

            A()

            {

            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= "+this.k);

            }

}

class B extends A

{

int val;

            B()

            {

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

            }

            B(int i)

            {

            this.val=i;

            System.out.println("Derived Class Object is Created with Value = "+this.val);

            }

            B(int i,int j)

            {

            super(i);

            this.val=j;

            System.out.println("Derived Class Object is Created with Value = "+this.val);

            }

public static void main(String a[])

            {

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

            B b=new B();

            System.out.println();

            System.out.println("Test - 2 : Parameterized - Default Constructor");

            B b1=new B(10);

            System.out.println();

            System.out.println("Test - 3 : Parameterized - Parameterized Constructor");

            B b2=new B(20,30);

            }

}

OUTPUT:

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

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

Test - 1 : Default Constructor

Super Class Object is Created

Derived Class Object is Created

Test - 2 : Parameterized - Default Constructor

Super Class Object is Created

Derived Class Object is Created with Value = 10

Test - 3 : Parameterized - Parameterized Constructor

Super Class Object is Created with Value K= 20

Derived Class Object is Created with Value = 30