how to iterate a hashmap with key hashmap

evelina

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

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 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:

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 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?

how to iterate a hashmap with key hashmap

re: how to iterate a hashmap with key hashmap

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