code: public boolean containsValue (int value) {
  		K[] keyTable = this.keyTable;
  		int[] valueTable = this.valueTable;
  		for (int i = capacity + stashSize; i-- > 0;)
  			if (keyTable[i] != null && valueTable[i] == value) return true;
  		return false;
  	}
docs: Returns true if the specified value is in the map. Note this traverses the entire map and compares every value, which may
  be an expensive operation.