Sort for HashMap<String, String> in Android

Question

I have a HashMap and I need sort him by key. What must I do? If you will give me example than I will be glad. Thank you for, anyway.

Bozho · Accepted Answer · 2011-07-28 08:20:20Z

5

Pick an implementation of SortedMap (for example TreeMap), and :

If your keys implement Comparable use use the copy-constructor (new TreeMap(existingMap)) to put your existing map elements to the sorted map.
If your keys are not comparable, create the TreeMap with a Comparator and then use treeMap.addAll(existingMap)

answered Jul 28, 2011 at 8:20

Bozho

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Comments

Lukas Eder · Accepted Answer · 2011-07-28 08:19:56Z

1

Use java.lang.TreeMap instead

answered Jul 28, 2011 at 8:19

Lukas Eder

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