How to for each the hashmap? [duplicate]

I have this field:

HashMap<String, HashMap> selects = new HashMap<String, HashMap>();

For each Hash<String, HashMap> I need to create a ComboBox, whose items are the value (which happens to be a HashMap itself) of HashMap <String, **HashMap**>.

By way of (non-functioning) demonstration:

for (int i=0; i < selects.size(); i++) {
    HashMap h = selects[i].getValue();
    ComboBox cb = new ComboBox();

    for (int y=0; y < h.size(); i++) {
        cb.items.add(h[y].getValue);
    }
}

I know I’m a bit late for that one, but I’ll share what I did too, in case it helps someone else :

HashMap<String, HashMap> selects = new HashMap<String, HashMap>();

for(Map.Entry<String, HashMap> entry : selects.entrySet()) {
    String key = entry.getKey();
    HashMap value = entry.getValue();

    // do what you have to do here
    // In your case, another loop.
}