java面試題經典1

摘自牛客網

下面代碼的輸出是什麼？

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

public class Base {     private String baseName = "base";     public Base()     {         callName();     }       public void callName()     {         System. out. println(baseName);     }       static class Sub extends Base     {         private String baseName = "sub";         public void callName()         {             System. out. println (baseName) ;         }     }     public static void main(String[] args)     {         Base b = new Sub();     } }