how to iterate a hashmap with key hashmap

[evelina]

Hello, I need help. I have the following hashmap:

HashMap<HashMap<Dimension, Integer>, String> mapList = new HashMap<HashMap<Dimension, Integer>, String>();

I want to extract Dimesion from the key, where the Integer is "1", and String from the value.

How could I iterate it?
I wrote that, but it doesn't work at the way I expected:

HashMap<Dimension, String> singleValues = new HashMap<Dimension, String>();
for (Map.Entry<HashMap<Dimension, Integer>, String> entry : mapList.entrySet()) {
  Iterator iter = entry.getKey().entrySet().iterator();
  while (iter.hasNext()) {
    Map.Entry<Dimension, Integer> innerEntry = (Map.Entry<Dimension, Integer>) iter.next();
    if (innerEntry.getValue().equals(1)) {
      singleValues.put(innerEntry.getKey(), entry.getValue());
      System.out.println(innerEntry.getKey() + " : " +
      entry.getValue());
 
    }
  }
}

Thanks in advance

[r035198x]

Your code smells a bit. Why do you have a Map<Map>? Also trying to search the map by value rather than the key adds a bit of bad odour.
What problem are these maps trying to solve?