class A { public A() { System.out.println("class A"); } { System.out.println("I'm A class"); } static { System.out.println("class A static"); } } public class B extends A { public B() { System.out.println("class B"); } { System.out.println("I'm B class"); } static { System.out.println("class B static"); } public static void main(String[] args) { new B();
} }