Replace a value in NSDictionary in iPhone

Question

I have a array (dataArray) of NSDictionary \"item\". It has datas like \"david\" for key \"name\" and \"85\" for key \"marks\" etc for 5 students. I want to replace the mark

Answer 1

If you want to update an object in a NSDictionary you should use NSMutableDictionary instead. NSMutableDictionary has the following EXTRA methods

Adding Entries

• setObject:forKey:
• setValue:forKey:
• addEntriesFromDictionary:
• setDictionary:

Removing Entries

• removeObjectForKey:
• removeAllObjects
• removeObjectsForKeys: