how to change the order of a Linked hashMap

Hi,

I am having a linked Hashmap which has few entries. I would like add an entry, which has to be added in the first of all the entries.

LinkedHashMap lHashMap = new LinkedHashMap();

lHashMap.put("1","One");
lHashMap.put("2","Two");
lHashMap.put("3","Three");

In the above mentioned code , if i add, lHashMap.put("0","zero");

I would like to be added as ,

lHashMap.put("0","zero");
lHashMap.put("1","One");
lHashMap.put("2","Two");
lHashMap.put("3","Three");

Please help,

Thanks in advance,
Yuga

Seems like a TreeMap<Integer,String> is more useful for you. That does require you to omit the quotes around the keys (so 0 instead of "0" - the key will be autoboxed into an Integer) but the TreeMap will keep the keys sorted.

Hi,

Thanks for the reply. But i need to get this value using linked hashmap only. Is it possible to use any logic to derive this?

Thanks,
Yuga.

Yuga,

Can you please help us by telling how would you get the keys in real scenario.

Regards,
Patricia

Patricia,

I am not sure whether you are asking this :

Set st = lHashMap.keySet();
Iterator itr = st.iterator();
while(itr.hasNext())
System.out.println(itr.next());

This is how we generally get list of keys in a hashmap.

Regards,
Yuga

Noooo, I am asing how would your lHashMap object going to have the keys....I am sure it wont be hard coded like this in real scenario.