Package com.github.f4b6a3.uuid.util

Class ByteUtil

java.lang.Object

com.github.f4b6a3.uuid.util.ByteUtil

public final class ByteUtil
extends Object

Class that contains many static methods for byte handling.

Method Summary

Modifier and Type	Method	Description
static byte[]	array(int length, byte value)	Get a new array with a specific length and filled with a byte value.
static byte[]	concat(byte[] bytes1, byte[] bytes2)	Concatenates two byte arrays.
static byte[]	copy(byte[] bytes)	Copy an entire array.
static byte[]	copy(byte[] bytes, int start, int end)	Copy part of an array.
static boolean	equalArrays(byte[] bytes1, byte[] bytes2)	Check if two arrays of bytes are equal.
static byte[]	toBytes(char[] hexadecimal)	Get an array of bytes from a given hexadecimal char array.
static byte[]	toBytes(long number)	Get an array of bytes from a given number.
static byte[]	toBytes(long... numbers)	Get an array of bytes from a given array of numbers.
static byte[]	toBytes(String hexadecimal)	Get an array of bytes from a given hexadecimal string.
static String	toHexadecimal(byte[] bytes)	Get a hexadecimal string from given array of bytes.
static String	toHexadecimal(long number)	Get a hexadecimal string from given number.
static String	toHexadecimal(long... numbers)	Get a hexadecimal string from given number.
static char[]	toHexadecimalChars(byte[] bytes)	Get a hexadecimal char array from given array of bytes.
static char[]	toHexadecimalChars(long... numbers)	Get a hexadecimal char array from given array of numbers.
static long	toNumber(byte[] bytes)	Get a number from a given array of bytes.
static long	toNumber(byte[] bytes, int start, int length)	Get a number from a given array of bytes.
static long	toNumber(char[] hexadecimal)	Get a number from a given hexadecimal char array.
static long	toNumber(String hexadecimal)	Get a number from a given hexadecimal string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

toNumber

public static long toNumber(String hexadecimal)

Get a number from a given hexadecimal string.

Parameters:

hexadecimal - a string

Returns:

a long

toNumber

public static long toNumber(char[] hexadecimal)

Get a number from a given hexadecimal char array.

Parameters:

hexadecimal - a string

Returns:

a long

toNumber

public static long toNumber(byte[] bytes)

Get a number from a given array of bytes.

Parameters:

bytes - a byte array

Returns:

a long

toNumber

public static long toNumber(byte[] bytes,
                            int start,
                            int length)

Get a number from a given array of bytes.

Parameters:

bytes - a byte array

start - first byte of the number

length - byte length of the number

Returns:

a long

toBytes

public static byte[] toBytes(long number)

Get an array of bytes from a given number.

Parameters:

number - a number

Returns:

a byte array

toBytes

public static byte[] toBytes(long... numbers)

Get an array of bytes from a given array of numbers.

Parameters:

numbers - an array of numbers

Returns:

a byte array

toBytes

public static byte[] toBytes(String hexadecimal)

Get an array of bytes from a given hexadecimal string.

Parameters:

hexadecimal - a string

Returns:

a byte array

toBytes

public static byte[] toBytes(char[] hexadecimal)

Get an array of bytes from a given hexadecimal char array.

Parameters:

hexadecimal - a string

Returns:

a byte array

toHexadecimal

public static String toHexadecimal(byte[] bytes)

Get a hexadecimal string from given array of bytes.

Parameters:

bytes - byte array

Returns:

a string

toHexadecimalChars

public static char[] toHexadecimalChars(byte[] bytes)

Get a hexadecimal char array from given array of bytes.

Parameters:

bytes - byte array

Returns:

a char array

toHexadecimalChars

public static char[] toHexadecimalChars(long... numbers)

Get a hexadecimal char array from given array of numbers.

Parameters:

numbers - an array of numbers

Returns:

a char array

toHexadecimal

public static String toHexadecimal(long... numbers)

Get a hexadecimal string from given number.

Parameters:

numbers - an array of numbers

Returns:

a string

toHexadecimal

public static String toHexadecimal(long number)

Get a hexadecimal string from given number.

Parameters:

number - a number

Returns:

a string

array

public static byte[] array(int length,
                           byte value)

Get a new array with a specific length and filled with a byte value.

Parameters:

length - array size

value - byte value

Returns:

a byte array

copy

public static byte[] copy(byte[] bytes)

Copy an entire array.

Parameters:

bytes - byte array

Returns:

a byte array

copy

public static byte[] copy(byte[] bytes,
                          int start,
                          int end)

Copy part of an array.

Parameters:

bytes - byte array

start - start position

end - end position

Returns:

a byte array

concat

public static byte[] concat(byte[] bytes1,
                            byte[] bytes2)

Concatenates two byte arrays.

Parameters:

bytes1 - byte array 1

bytes2 - byte array 2

Returns:

a byte array

equalArrays

public static boolean equalArrays(byte[] bytes1,
                                  byte[] bytes2)

Check if two arrays of bytes are equal.

Parameters:

bytes1 - byte array 1

bytes2 - byte array 2

Returns:

a boolean