* ?what is the output of the following code 2) (2 ) public class Testi { public static void main(String[] args) { B obj = new B(); } } class A { public A() { this(" this is "); System.out.print(" class A "); } public A(String x) { System.out.print(x); } } class B extends A { public B() { System.out.print(" hello ")