1
我無法迭代treemultimap中的值。請告訴我錯在這裏......我要打印的值作爲自然順序爲TreeMultimap迭代問題
a 11 12
a 11 12
b 13 1 2 3
b 13 1 2 3
b 13 1 2 3
b 13 1 2 3
c 14
public static void main(String[] args) {
TreeMultimap<String, Integer> mp = TreeMultimap.create();
mp.put("a", 10);
mp.put("a", 11);
mp.put("a", 12);
mp.put("b", 13);
mp.put("c", 14);
mp.put("e", 15);
mp.put("b", 1);
mp.put("b", 2);
mp.put("b", 3);
List list = null;
Iterator i = mp.iterator();
while(i.hasNext()) {
Map.Entry me = (Map.Entry)i.next();
list=(List)mp.get(me.getKey());
for(int j=0;j<list.size();j++)
{
System.out.println(me.getKey()+": value :"+list.get(j).toString() .replaceAll("^\\[|\\]$", "").replaceAll(",", " "));
}
的Map.Entry不是通用的?嘗試Map.Entry –
迭代器發出此錯誤「對於類型TreeMultimap」 –
user2444474
,未定義方法iterator(),這意味着iterator()方法不存在。而不是在javadoc中https://google-collections.googlecode.com/svn/trunk/javadoc/com/google/common/collect/TreeMultimap.html –