如何创建静态内部类对象

Question

public class A{
    public static B{
        public String aa;
        public static String bb;
    }
}

public class C{
    //现在要创建B的对象
    B b = new A.B()
    //经过调试，b为null？而并没有创建对象
}

 

Answer 1

public class A {
    public static class B{
        public String aa;
        public static String bb;
    }
}

public class C{

    public static void main(String[] args){
        //现在要创建B的对象
        A.B b = new A.B();
    }
}