Is there a way for find how many keys are currently in a NSMutableDictionary?

Question

Just curious if there is a way to find the number of keys in a NSMutableDictionary? Also is there a way to access each key in turn and find its value, or do I need to access the data manually via the predefined keys?

(i.e.)

myTown  = [cryo objectForKey: @"town"];
myZip   = [cryo objectForKey: @"HT6 4HT"];
myEmail = [cryo objectForKey: @"[email protected]"];

I guess I am thinking using a wildcard or something for the key?

gary

Answer 1

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
NSLog(@"%d", [[dict allKeys] count]);

[dict allKeys] gives you the list of all the current keys.

Answer 2

-[NSMutableDictionary count]