帮帮忙!
1 package foo;
2 import java.util.Vector;
3 private class MyVector extends Vector
4 {
5 int i = 1;
6 public MyVector()
7 {
8 i = 2;
9 }
10 }
11 public class MyNewVector extends MyVector
12 {
13 public MyNewVector ()
14 {
15 int i = 4;
16 }
17 public static void main (String args [])
18 {
19 MyNewVector v = new MyNewVector();
20 }
21 }
为什么第3行不能用private修饰类MyVector呢?类MyNewVector并没有引用类MyVector的任何东西啊?