package slidenerd.javaoop; /** * Created by Microsoft on 10/6/2015. */ public class SuperKeyWord { public static void main(String[] args) { B b = new B(10, 20); System.out.println(b.a); System.out.println(b.b); } } class A { int a = 1; // Default constructor will always call to it's superclass default // constructor // public A() { // System.out.println("A constructor"); // } public A(int n1) { System.out.println("A's constructor is called"); a = 2 * n1; } } class B extends A { int b = 2; public B() { super(0); System.out.println("B constructor"); } public B(int n1, int n2) { super(n1); b = n2; } }