实现迭代器接口的类 [英] Class which implements iterator interface

问题描述

public class SportCarHouse implements CarIterator {

      List sportsCars;
      public List getCars() 
      {
            return sportsCars;
      }
      public Iterator createIterator() 
      {
            return sportsCars.iterator();
      }
}

我已经获得了实现Iterator接口的上述代码，但是遇到了以下错误.

I''ve got the above code which implements the Iterator interface, but I get the following errors.

C:\Documents and Settings\20818781\Desktop\Pattern_iterator\SportCarHouse.java:4: cannot find symbol
symbol  : class List
location: class SportCarHouse
      List sportsCars;
      ^
C:\Documents and Settings\20818781\Desktop\Pattern_iterator\SportCarHouse.java:19: cannot find symbol
symbol  : class List
location: class SportCarHouse
      public List getCars()
             ^
2 errors

推荐答案

与以前的Iterator类一样，请尝试导入List类:
import java.util.List

哦，等等，把它刮开.更好:
import java.util.*;

As with the Iterator class before, try importing the List class:
import java.util.List

Oh, wait, scratch that. Even better:
import java.util.*;

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