从Multimap中的键获取JSONArray值

Question

I have a multimap.

Multimap<String,JSONArray> map = ArrayListMultimap.create();

I am trying to get all values based from key. But when I am trying, I am getting the following error:

 Exception details:  java.lang.ClassCastException: 
 com.google.common.collect.AbstractMultimap$RandomAccessWrappedList cannot be 
 cast to org.json.JSONArray
 java.lang.ClassCastException: 
 com.google.common.collect.AbstractMultimap$RandomAccessWrappedList cannot be 
 cast to org.json.JSONArray

I am trying to do :

for (final String str : map.keySet()) {
            final JSONArray jsonArr = (JSONArray) map.get(str);
           //do something
}

Can anyone suggest how to get the jsonArray for each keyset?

Answer 1

You can iterate through values of Multimap like this.

  for (Object value1 : map.values()) {
    JSONArray  val  = (JSONArray) value1;
  }