Sorted hashmap iteration [duplicate]

Question

I have such code:

HashMap<Long, TempPosition> positions = getTempPositions();
    for (SortedMap.Entry<Long, TempPosition> p: positions.entrySet()) {...}

The problem is the 'positions' is not sorted or non valid sorted. What the easiest way to iterate through the hashmap and save its current order?

Thank you

Answer 1

A HashMap by definition doesn't have an order. If you need to preserve or create some kind of order you need to use TreeMap instead of HashMap.