HashMap ContainsKey()

[vinoopraj]

Hi .. all
I am in trouble with hashmap..
the code is

HashMap hash = new HashMap();
hash.put("ABC", "some values");

i want to check(hash.containsKey("abc"))
it returns false...

thanks in advance
vinoop

[masijade]

So uppercase all your keys when you insert them, and uppercase the string you use when searching for the key.

[arseny]

Its because "ABC".equals("abc") returns false.
If the case is not important you can use one of String.toUpperCase() or String.toLowerCase() method for key in both cases - before putting a key value and before getting it.