int number1 = int.Parse('42'); = 43
var number2 = int.Parse('42'); = 43
System.Int32 number3 = System.Int32.Parse('42'); = 43
var number4 = System.Int32.Parse('42'); = 43
double doubleValue = double.Parse(stringValue); = 4.140000000000001
bool boolValue = bool.Parse(boolString); = False
char charValue = char.Parse(charString) = 65