Associates the specified string value with the specified string key in this map.
Associates the specified string value with the specified string key in this map.If the map previously contained a mapping for the key, the old value is replaced by the specified value. (A map m is said to contain a mapping for a key k if and only if pblMapContainsKey(k) would return true.)
For hash maps this method has a time complexity of O(1). For tree maps this method has a time complexity of O(Log N).