ByteUtil (uuid-creator 1.3.8 API)

java.lang.Object
- com.github.f4b6a3.uuid.util.ByteUtil

```
public class ByteUtil
extends Object
```
Class that contains many static methods for byte handling.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and 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 int`	`fromHexChar(char chr)` Get a number value from a hexadecimal char.
`static byte[]`	`replace(byte[] bytes, byte[] replacement, int index)` Replace part of an array of bytes with another subarray of bytes and starting from a given index.
`static byte[]`	`toBytes(long number)` Get an array of bytes from a given number.
`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 char`	`toHexChar(int number)` Get a hexadecimal from a number value.
`static long`	`toNumber(byte[] bytes)` Get a number from a given array of bytes.
`static long`	`toNumber(byte[] bytes, int start, int end)`
`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(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 end)
```
  - toBytes
```
public static byte[] toBytes(long number)
```
    Get an array of bytes from a given number.
    
    Parameters:
    
    number - a long value
    
    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
  - toHexadecimal
```
public static String toHexadecimal(byte[] bytes)
```
    Get a hexadecimal string from given array of bytes.
    
    Parameters:
    
    bytes - byte array
    
    Returns:
    
    a string
  - toHexadecimal
```
public static String toHexadecimal(long number)
```
    Get a hexadecimal string from given number.
    
    Parameters:
    
    number - an integer
    
    Returns:
    
    a string
  - fromHexChar
```
public static int fromHexChar(char chr)
```
    Get a number value from a hexadecimal char.
    
    Parameters:
    
    chr - a character
    
    Returns:
    
    an integer
  - toHexChar
```
public static char toHexChar(int number)
```
    Get a hexadecimal from a number value.
    
    Parameters:
    
    number - an integer
    
    Returns:
    
    a char
  - 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
  - replace
```
public static byte[] replace(byte[] bytes,
                             byte[] replacement,
                             int index)
```
    Replace part of an array of bytes with another subarray of bytes and starting from a given index.
    
    Parameters:
    
    bytes - byte array
    
    replacement - replacement byte array
    
    index - start position
    
    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

Class ByteUtil

Method Summary

Methods inherited from class java.lang.Object

Method Detail

toNumber

toNumber

toNumber

toBytes

toBytes

toHexadecimal

toHexadecimal

fromHexChar

toHexChar

array

copy

copy

concat

replace

equalArrays