public A(){ system.out.println("2"); } } } class B extend A{ static { system.out.println("n");
public B(){{
System.out.println("b");
} } } }
public static class hello { public static void main(String[] args) { // TODO Auto-generated method stub A ab =new B(); ab=new B(); } } 求哪位高手解答程序运行答案在下感激不尽谢谢。