java.lang.Object
- com.google.common.primitives.UnsignedBytes

```
@GwtIncompatible
public final class UnsignedBytes
extends Object
```
Static utility methods pertaining to byte primitives that interpret values as unsigned (that is, any negative value b is treated as the positive value 256 + b). The corresponding methods that treat the values as signed are found in SignedBytes, and the methods for which signedness is not an issue are in Bytes.
See the Guava User Guide article on primitive utilities.

Since:

1.0

Author:

Kevin Bourrillion, Martin Buchholz, Hiroshi Yamauchi, Louis Wasserman

Field Summary

Fields
Modifier and Type	Field	Description
`static byte`	`MAX_POWER_OF_TWO`	The largest power of two that can be represented as an unsigned `byte`.
`static byte`	`MAX_VALUE`	The largest value that fits into an unsigned byte.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static byte`	`checkedCast(long value)`	Returns the `byte` value that, when treated as unsigned, is equal to `value`, if possible.
`static int`	`compare(byte a, byte b)`	Compares the two specified `byte` values, treating them as unsigned values between 0 and 255 inclusive.
`static String`	`join(String separator, byte... array)`	Returns a string containing the supplied `byte` values separated by `separator`.
`static Comparator<byte[]>`	`lexicographicalComparator()`	Returns a comparator that compares two `byte` arrays lexicographically.
`static byte`	`max(byte... array)`	Returns the greatest value present in `array`, treating values as unsigned.
`static byte`	`min(byte... array)`	Returns the least value present in `array`, treating values as unsigned.
`static byte`	`parseUnsignedByte(String string)`	Returns the unsigned `byte` value represented by the given decimal string.
`static byte`	`parseUnsignedByte(String string, int radix)`	Returns the unsigned `byte` value represented by a string with the given radix.
`static byte`	`saturatedCast(long value)`	Returns the `byte` value that, when treated as unsigned, is nearest in value to `value`.
`static void`	`sort(byte[] array)`	Sorts the array, treating its elements as unsigned bytes.
`static void`	`sort(byte[] array, int fromIndex, int toIndex)`	Sorts the array between `fromIndex` inclusive and `toIndex` exclusive, treating its elements as unsigned bytes.
`static void`	`sortDescending(byte[] array)`	Sorts the elements of `array` in descending order, interpreting them as unsigned 8-bit integers.
`static void`	`sortDescending(byte[] array, int fromIndex, int toIndex)`	Sorts the elements of `array` between `fromIndex` inclusive and `toIndex` exclusive in descending order, interpreting them as unsigned 8-bit integers.
`static int`	`toInt(byte value)`	Returns the value of the given byte as an integer, when treated as unsigned.
`static String`	`toString(byte x)`	Returns a string representation of x, where x is treated as unsigned.
`static String`	`toString(byte x, int radix)`	Returns a string representation of `x` for the given radix, where `x` is treated as unsigned.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MAX_POWER_OF_TWO
```
public static final byte MAX_POWER_OF_TWO
```
    The largest power of two that can be represented as an unsigned byte.
    
    Since:
    
    10.0
    
    See Also:
    
    Constant Field Values
  - MAX_VALUE
```
public static final byte MAX_VALUE
```
    The largest value that fits into an unsigned byte.
    
    Since:
    
    13.0
    
    See Also:
    
    Constant Field Values
- Method Detail
  - toInt
```
public static int toInt(byte value)
```
    Returns the value of the given byte as an integer, when treated as unsigned. That is, returns value + 256 if value is negative; value itself otherwise.
    Java 8+ users: use Byte.toUnsignedInt(byte) instead.
    
    Since:
    
    6.0
  - checkedCast
```
@CanIgnoreReturnValue
public static byte checkedCast(long value)
```
    Returns the byte value that, when treated as unsigned, is equal to value, if possible.
    
    Parameters:
    
    value - a value between 0 and 255 inclusive
    
    Returns:
    
    the byte value that, when treated as unsigned, equals value
    
    Throws:
    
    IllegalArgumentException - if value is negative or greater than 255
  - saturatedCast
```
public static byte saturatedCast(long value)
```
    Returns the byte value that, when treated as unsigned, is nearest in value to value.
    
    Parameters:
    
    value - any long value
    
    Returns:
    
    (byte) 255 if value >= 255, (byte) 0 if value <= 0, and value cast to byte otherwise
  - compare
```
public static int compare(byte a,
                          byte b)
```
    Compares the two specified byte values, treating them as unsigned values between 0 and 255 inclusive. For example, (byte) -127 is considered greater than (byte) 127 because it is seen as having the value of positive 129.
    
    Parameters:
    
    a - the first byte to compare
    
    b - the second byte to compare
    
    Returns:
    
    a negative value if a is less than b; a positive value if a is greater than b; or zero if they are equal
  - min
```
public static byte min(byte... array)
```
    Returns the least value present in array, treating values as unsigned.
    
    Parameters:
    
    array - a nonempty array of byte values
    
    Returns:
    
    the value present in array that is less than or equal to every other value in the array according to compare(byte, byte)
    
    Throws:
    
    IllegalArgumentException - if array is empty
  - max
```
public static byte max(byte... array)
```
    Returns the greatest value present in array, treating values as unsigned.
    
    Parameters:
    
    array - a nonempty array of byte values
    
    Returns:
    
    the value present in array that is greater than or equal to every other value in the array according to compare(byte, byte)
    
    Throws:
    
    IllegalArgumentException - if array is empty
  - toString
```
public static String toString(byte x)
```
    Returns a string representation of x, where x is treated as unsigned.
    
    Since:
    
    13.0
  - toString
```
public static String toString(byte x,
                              int radix)
```
    Returns a string representation of x for the given radix, where x is treated as unsigned.
    
    Parameters:
    
    x - the value to convert to a string.
    
    radix - the radix to use while working with x
    
    Throws:
    
    IllegalArgumentException - if radix is not between Character.MIN_RADIX and Character.MAX_RADIX.
    
    Since:
    
    13.0
  - parseUnsignedByte
```
@CanIgnoreReturnValue
public static byte parseUnsignedByte(String string)
```
    Returns the unsigned byte value represented by the given decimal string.
    
    Throws:
    
    NumberFormatException - if the string does not contain a valid unsigned byte value
    
    NullPointerException - if string is null (in contrast to Byte.parseByte(String))
    
    Since:
    
    13.0
  - parseUnsignedByte
```
@CanIgnoreReturnValue
public static byte parseUnsignedByte(String string,
                                     int radix)
```
    Returns the unsigned byte value represented by a string with the given radix.
    
    Parameters:
    
    string - the string containing the unsigned byte representation to be parsed.
    
    radix - the radix to use while parsing string
    
    Throws:
    
    NumberFormatException - if the string does not contain a valid unsigned byte with the given radix, or if radix is not between Character.MIN_RADIX and Character.MAX_RADIX.
    
    NullPointerException - if string is null (in contrast to Byte.parseByte(String))
    
    Since:
    
    13.0
  - join
```
public static String join(String separator,
                          byte... array)
```
    Returns a string containing the supplied byte values separated by separator. For example, join(":", (byte) 1, (byte) 2, (byte) 255) returns the string "1:2:255".
    
    Parameters:
    
    separator - the text that should appear between consecutive values in the resulting string (but not at the start or end)
    
    array - an array of byte values, possibly empty
  - lexicographicalComparator
```
public static Comparator<byte[]> lexicographicalComparator()
```
    Returns a comparator that compares two byte arrays lexicographically. That is, it compares, using compare(byte, byte)), the first pair of values that follow any common prefix, or when one array is a prefix of the other, treats the shorter array as the lesser. For example, [] < [0x01] < [0x01, 0x7F] < [0x01, 0x80] < [0x02]. Values are treated as unsigned.
    The returned comparator is inconsistent with Object.equals(Object) (since arrays support only identity equality), but it is consistent with Arrays.equals(byte[], byte[]).
    
    Since:
    
    2.0
  - sort
```
public static void sort(byte[] array)
```
    Sorts the array, treating its elements as unsigned bytes.
    
    Since:
    
    23.1
  - sort
```
public static void sort(byte[] array,
                        int fromIndex,
                        int toIndex)
```
    Sorts the array between fromIndex inclusive and toIndex exclusive, treating its elements as unsigned bytes.
    
    Since:
    
    23.1
  - sortDescending
```
public static void sortDescending(byte[] array)
```
    Sorts the elements of array in descending order, interpreting them as unsigned 8-bit integers.
    
    Since:
    
    23.1
  - sortDescending
```
public static void sortDescending(byte[] array,
                                  int fromIndex,
                                  int toIndex)
```
    Sorts the elements of array between fromIndex inclusive and toIndex exclusive in descending order, interpreting them as unsigned 8-bit integers.
    
    Since:
    
    23.1

Class UnsignedBytes

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

MAX_POWER_OF_TWO

MAX_VALUE

Method Detail

toInt

checkedCast

saturatedCast

compare

min

max

toString

toString

parseUnsignedByte

parseUnsignedByte

join

lexicographicalComparator

sort

sort

sortDescending

sortDescending