byteToString
public static String byteToString(int n)
Returns a string of 2 hexadecimal digits (most significant digit first)
corresponding to the lowest 8 bits of n.
dumpString
public static String dumpString(byte[] data)
dumpString
public static String dumpString(byte[] data,
String m)
dumpString
public static String dumpString(byte[] data,
int offset,
int length)
dumpString
public static String dumpString(byte[] data,
int offset,
int length,
String m)
Dump a byte array as a string, in a format that is easy to read for
debugging. The string
m is prepended to the start of each line.
If offset and length are omitted, the whole array is used. If m is
omitted, nothing is prepended to each line.
data
- the byte array to be dumpedoffset
- the offset within data to start fromlength
- the number of bytes to dumpm
- a string to be prepended to each line
- a String containing the dump.
dumpString
public static String dumpString(int[] data)
dumpString
public static String dumpString(int[] data,
String m)
dumpString
public static String dumpString(int[] data,
int offset,
int length)
dumpString
public static String dumpString(int[] data,
int offset,
int length,
String m)
Dump an int array as a string, in a format that is easy to read for
debugging. The string
m is prepended to the start of each line.
If offset and length are omitted, the whole array is used. If m is
omitted, nothing is prepended to each line.
data
- The int[] to dumpoffset
- The offset within data to start fromlength
- The number of ints to dumpm
- A string to prepend to each line
- A String containing the dump.
fromDigit
public static int fromDigit(char ch)
Returns the number from 0 to 15 corresponding to the hex digit ch.
fromReversedString
public static byte[] fromReversedString(String hex)
Returns a byte array from a string of hexadecimal digits in reverse
order (i.e. the least significant byte is first, but within each byte the
most significant hex digit is before the least significant hex digit).
The string must have an even number of digits.
This is not really either little nor big-endian; it's just obscure. It is
here because it is the format used for the SPEED certification data.
fromString
public static byte[] fromString(String hex)
Returns a byte array from a string of hexadecimal digits.
intToString
public static String intToString(int n)
Returns a string of 8 hexadecimal digits (most significant digit first)
corresponding to the integer n, which is treated as unsigned.
longToString
public static String longToString(long n)
Returns a string of 16 hexadecimal digits (most significant digit first)
corresponding to the long n, which is treated as unsigned.
main
public static void main(String[] args)
self_test
public static void self_test(PrintWriter out)
shortToString
public static String shortToString(int n)
Returns a string of 4 hexadecimal digits (most significant digit first)
corresponding to the lowest 16 bits of n.
toDigit
public static char toDigit(int n)
Returns the hex digit corresponding to a number n, from 0 to 15.
toReversedString
public static String toReversedString(byte[] b)
toReversedString
public static String toReversedString(byte[] b,
int offset,
int length)
Returns a string of hexadecimal digits in reverse order from a byte array
(i.e. the least significant byte is first, but within each byte the
most significant hex digit is before the least significant hex digit).
If offset and length are omitted, the whole array is used.
toString
public static String toString(byte[] ba)
toString
public static String toString(byte[] ba,
int offset,
int length)
Returns a string of hexadecimal digits from a byte array. Each
byte is converted to 2 hex symbols.
If offset and length are omitted, the whole array is used.
toString
public static String toString(int[] ia)
toString
public static String toString(int[] ia,
int offset,
int length)
Returns a string of hexadecimal digits from an integer array. Each
int is converted to 4 hex symbols.
If offset and length are omitted, the whole array is used.