THE PACKAGE JAVA.LANG
java.lang.Long
20.8
20.8.16
public static String toBinaryString(long i)
The argument is converted to an unsigned representation in binary radix (base 2);
this representation is returned as a string.
The result represents the unsigned magnitude of the argument. This equals the
argument plus 2
64
if the argument is negative; otherwise, it equals the argument.
If the unsigned magnitude is zero, it is represented by a single zero character
 0 
  (
 \u0030 
); otherwise, the first character of the representation of the
unsigned magnitude will not be the zero character. The characters
 0 
(
 \u0030 
) and
 1 
 (
 \u0031 
) are used as binary digits.
20.8.17
public static long parseLong(String s)
throws NumberFormatException
The argument is interpreted as representing a signed decimal integer. The compo 
nents of the string must all be decimal digits, except that the first character may be
   
 (
 \u002d 
) to indicate a negative value. The resulting
long
 value is returned,
exactly as if the argument and the radix
10
 were given as arguments to the
parseLong
 method that takes two arguments ( 20.8.18).
Note that neither
L
 nor
l
 is permitted to appear at the end of the string as a
type indicator, as would be permitted in Java source code ( 3.10.1).
20.8.18
public static long parseLong(String s, int radix)
throws NumberFormatException
The first argument is interpreted as representing a signed integer in the radix spec 
ified by the second argument. The components of the string must all be digits of
the specified radix (as determined by whether
Character.digit
 ( 20.5.23)
returns a nonnegative value), except that the first character may be
   
(
 \u002d 
) to indicate a negative value. The resulting
long
 value is returned.
Note that neither
L
 nor
l
 is permitted to appear at the end of the string as a
type indicator, as would be permitted in Java source code ( 3.10.1) except that
either
L
 or
l
 may appear as a digit for a radix greater than
22
.
An exception of type
NumberFormatException
 is thrown if any of the fol 
lowing situations occurs:
The first argument is
null
 or is a string of length zero.
The
radix
 is either smaller than
Character.MIN_RADIX
 ( 20.5.3) or larger
than
Character.MAX_RADIX
 ( 20.5.4).
499






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