20.8

java.lang.Long

THE PACKAGE JAVA.LANG

The first character of the string is not a digit of the specified

radix

 and is not

a minus sign

 (

 \u002d 

).

The first character of the string is a minus sign and the string is of length 1.

Any character of the string after the first is not a digit of the specified

radix

.

The integer value represented by the string cannot be represented as a value of

type

long

.

Examples:

parseLong("0", 10)

 returns

0L

parseLong("473", 10)

 returns

473L

parseLong(" 0", 10)

 returns

0L

parseLong(" FF", 16)

 returns

 255L

parseLong("1100110", 2)

 returns

102L

parseLong("99", 8)

 throws a

NumberFormatException

parseLong("Hazelnut", 10)

 throws a

NumberFormatException

parseLong("Hazelnut", 36)

 returns

1356099454469L

20.8.19

public static Long valueOf(String s)

throws NumberFormatException

The argument is interpreted as representing a signed decimal integer, exactly as if

the argument were given to the

parseLong

 method that takes one argument

( 20.8.17). The result is a

Long

 object that represents the integer value specified

by the string.

In other words, this method returns a

Long

 object equal to the value of:

new Long(Long.parseLong(s))

20.8.20

public static Long valueOf(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, exactly as if the arguments were given to the

parseLong

 method that takes two arguments ( 20.8.18). The result is a

Long

object that represents the integer value specified by the string.

In other words, this method returns a

Long

 object equal to the value of:

new Long(Long.parseLong(s, radix))

500