Question

Possible Duplicate:
ordered map implementation

I am using the hashmap to store the values as follows –

 Map<String,String>         propertyMap=new HashMap<String,String>();


 propertyMap.put("Document Type", dataobject.get("dDocType"));
 propertyMap.put("Document Title", dataobject.get("dDocTitle"));
 propertyMap.put("Revision Label", dataobject.get("dRevLabel"));
 propertyMap.put("Security Group", dataobject.get("dSecurityGroup"));

After that i am getting the hashmap key and value in a List

 documentProperties = new ArrayList(propertyMap.entrySet());

But when i iterate over the List i am not getting the key and values in the order i have put it into the map..

Is there is anyway by which i can get the values in the Order i am putting it into the map.
Thanks

Answer 1

I believe what you are looking for is LinkedHashMap.

This linked list defines the iteration ordering, which is normally the order in which keys were inserted into the map (insertion-order).

By the why, why the need for a separate ArrayList? You can directly iterate over Map.entrySet:

for (final Map.Entry<String, String> entry : propertyMap.entrySet()) {
  ...
}