The Std class provides standard methods for manipulating basic types.
Leading whitespaces are ignored.
x starts with 0x or 0X, hexadecimal notation is recognized where the following digits may
contain 0-9 and A-F.
x is read as decimal number with 0-9 being allowed characters.
x may also start with
a - to denote a negative value.
In decimal mode, parsing continues until an invalid character is detected, in which case the result up to that point is returned. For hexadecimal notation, the effect of invalid characters is unspecified.
Leading 0s that are not part of the 0x/0X hexadecimal notation are ignored, which means octal notation is not supported.
x is null, the result is unspecified.
x cannot be parsed as integer, the result is
Converts any value to a String.
s is an instance of a class and that class or one of its parent classes has
toString method, that method is called. If no such method is present, the result
s is an enum constructor without argument, the constructor's name is returned. If
arguments exists, the constructor's name followed by the String representations of
the arguments is returned.
s is a structure, the field names along with their values are returned. The field order
and the operator separating field names and values are unspecified.
If s is null, "null" is returned.