List如何使用Java代码遍历以获取String，Object的值

package excel;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class List1
{
  public static void main(String[] args)
  {

    Map map = new HashMap();
    map.put("1", "fds");
    map.put("2", "valu");
    List> list = new ArrayList>();
    list.add(map);
    for (Map m : list)
    {
      for (String k : m.keySet())
      {
        System.out.println(k + " : " + m.get(k));
      }

    }

  }