Returns a string representation of the integer argument as an unsigned integer in base 2.
The unsigned integer value is the argument plus 232
if the argument is negative; otherwise it is equal to the
argument. This value is converted to a string of ASCII digits
in binary (base 2) with no extra leading
The value of the argument can be recovered from the returned
s by calling
If the unsigned magnitude is zero, it is represented by a
single zero character
otherwise, the first character of the representation of the
unsigned magnitude will not be the zero character. The
'\u0031') are used as binary digits.
|an integer to be converted to a string.|