@GwtCompatible(emulated=true) public final class Shorts extends Object
short primitives, that are not already found in
either Short or Arrays.
See the Guava User Guide article on primitive utilities.
| Modifier and Type | Field and Description |
|---|---|
static int |
BYTES
The number of bytes required to represent a primitive
short value. |
static short |
MAX_POWER_OF_TWO
The largest power of two that can be represented as a
short. |
| Modifier and Type | Method and Description |
|---|---|
static List<Short> |
asList(short... backingArray)
Returns a fixed-size list backed by the specified array, similar to
Arrays.asList(Object[]). |
static short |
checkedCast(long value)
Returns the
short value that is equal to value, if possible. |
static int |
compare(short a,
short b)
Compares the two specified
short values. |
static short[] |
concat(short[]... arrays)
Returns the values from each provided array combined into a single array.
|
static short |
constrainToRange(short value,
short min,
short max)
Returns the value nearest to
value which is within the closed range [min..max]. |
static boolean |
contains(short[] array,
short target)
Returns
true if target is present as an element anywhere in array. |
static short[] |
ensureCapacity(short[] array,
int minLength,
int padding)
Returns an array containing the same values as
array, but guaranteed to be of a
specified minimum length. |
static short |
fromByteArray(byte[] bytes)
Returns the
short value whose big-endian representation is stored in the first 2 bytes
of bytes; equivalent to ByteBuffer.wrap(bytes).getShort(). |
static short |
fromBytes(byte b1,
byte b2)
Returns the
short value whose byte representation is the given 2 bytes, in big-endian
order; equivalent to Shorts.fromByteArray(new byte[] {b1, b2}). |
static int |
hashCode(short value)
Returns a hash code for
value; equal to the result of invoking ((Short)
value).hashCode(). |
static int |
indexOf(short[] array,
short target)
Returns the index of the first appearance of the value
target in array. |
static int |
indexOf(short[] array,
short[] target)
Returns the start position of the first occurrence of the specified
target within
array, or -1 if there is no such occurrence. |
static String |
join(String separator,
short... array)
Returns a string containing the supplied
short values separated by separator. |
static int |
lastIndexOf(short[] array,
short target)
Returns the index of the last appearance of the value
target in array. |
static Comparator<short[]> |
lexicographicalComparator()
Returns a comparator that compares two
short arrays lexicographically. |
static short |
max(short... array)
Returns the greatest value present in
array. |
static short |
min(short... array)
Returns the least value present in
array. |
static void |
reverse(short[] array)
Reverses the elements of
array. |
static void |
reverse(short[] array,
int fromIndex,
int toIndex)
Reverses the elements of
array between fromIndex inclusive and toIndex
exclusive. |
static short |
saturatedCast(long value)
Returns the
short nearest in value to value. |
static void |
sortDescending(short[] array)
Sorts the elements of
array in descending order. |
static void |
sortDescending(short[] array,
int fromIndex,
int toIndex)
Sorts the elements of
array between fromIndex inclusive and toIndex
exclusive in descending order. |
static Converter<String,Short> |
stringConverter()
Returns a serializable converter object that converts between strings and shorts using
Short.decode(java.lang.String) and Short.toString(). |
static short[] |
toArray(Collection<? extends Number> collection)
Returns an array containing each value of
collection, converted to a short
value in the manner of Number.shortValue(). |
static byte[] |
toByteArray(short value)
Returns a big-endian representation of
value in a 2-element byte array; equivalent to
ByteBuffer.allocate(2).putShort(value).array(). |
public static final int BYTES
short value.
Java 8 users: use Short.BYTES instead.
public static final short MAX_POWER_OF_TWO
short.public static int hashCode(short value)
value; equal to the result of invoking ((Short)
value).hashCode().
Java 8 users: use Short.hashCode(short) instead.
value - a primitive short valuepublic static short checkedCast(long value)
short value that is equal to value, if possible.value - any value in the range of the short typeshort value that equals valueIllegalArgumentException - if value is greater than Short.MAX_VALUE or
less than Short.MIN_VALUEpublic static short saturatedCast(long value)
short nearest in value to value.value - any long valueshort if it is in the range of the short type,
Short.MAX_VALUE if it is too large, or Short.MIN_VALUE if it is too smallpublic static int compare(short a, short b)
short values. The sign of the value returned is the same as
that of ((Short) a).compareTo(b).
Note for Java 7 and later: this method should be treated as deprecated; use the
equivalent Short.compare(short, short) method instead.
a - the first short to compareb - the second short to comparea is less than b; a positive value if a is
greater than b; or zero if they are equalpublic static boolean contains(short[] array, short target)
true if target is present as an element anywhere in array.array - an array of short values, possibly emptytarget - a primitive short valuetrue if array[i] == target for some value of ipublic static int indexOf(short[] array, short target)
target in array.array - an array of short values, possibly emptytarget - a primitive short valuei for which array[i] == target, or -1 if no
such index exists.public static int indexOf(short[] array, short[] target)
target within
array, or -1 if there is no such occurrence.
More formally, returns the lowest index i such that Arrays.copyOfRange(array,
i, i + target.length) contains exactly the same elements as target.
array - the array to search for the sequence targettarget - the array to search for as a sub-sequence of arraypublic static int lastIndexOf(short[] array, short target)
target in array.array - an array of short values, possibly emptytarget - a primitive short valuei for which array[i] == target, or -1 if no
such index exists.public static short min(short... array)
array.array - a nonempty array of short valuesarray that is less than or equal to every other value in
the arrayIllegalArgumentException - if array is emptypublic static short max(short... array)
array.array - a nonempty array of short valuesarray that is greater than or equal to every other value
in the arrayIllegalArgumentException - if array is empty@Beta public static short constrainToRange(short value, short min, short max)
value which is within the closed range [min..max].
If value is within the range [min..max], value is returned
unchanged. If value is less than min, min is returned, and if value is greater than max, max is returned.
value - the short value to constrainmin - the lower bound (inclusive) of the range to constrain value tomax - the upper bound (inclusive) of the range to constrain value toIllegalArgumentException - if min > maxpublic static short[] concat(short[]... arrays)
concat(new short[] {a, b}, new short[] {}, new short[] {c} returns the array {a, b,
c}.arrays - zero or more short arrays@GwtIncompatible public static byte[] toByteArray(short value)
value in a 2-element byte array; equivalent to
ByteBuffer.allocate(2).putShort(value).array(). For example, the input value (short) 0x1234 would yield the byte array {0x12, 0x34}.
If you need to convert and concatenate several values (possibly even of different types),
use a shared ByteBuffer instance, or use ByteStreams.newDataOutput() to get a growable buffer.
@GwtIncompatible public static short fromByteArray(byte[] bytes)
short value whose big-endian representation is stored in the first 2 bytes
of bytes; equivalent to ByteBuffer.wrap(bytes).getShort(). For example, the
input byte array {0x54, 0x32} would yield the short value 0x5432.
Arguably, it's preferable to use ByteBuffer; that library exposes much more
flexibility at little cost in readability.
IllegalArgumentException - if bytes has fewer than 2 elements@GwtIncompatible public static short fromBytes(byte b1, byte b2)
short value whose byte representation is the given 2 bytes, in big-endian
order; equivalent to Shorts.fromByteArray(new byte[] {b1, b2}).@Beta public static Converter<String,Short> stringConverter()
Short.decode(java.lang.String) and Short.toString(). The returned converter throws NumberFormatException if the input string is invalid.
Warning: please see Short.decode(java.lang.String) to understand exactly how strings are
parsed. For example, the string "0123" is treated as octal and converted to the
value 83.
public static short[] ensureCapacity(short[] array, int minLength, int padding)
array, but guaranteed to be of a
specified minimum length. If array already has a length of at least minLength,
it is returned directly. Otherwise, a new array of size minLength + padding is
returned, containing the values of array, and zeroes in the remaining places.array - the source arrayminLength - the minimum length the returned array must guaranteepadding - an extra amount to "grow" the array by if growth is necessaryarray, with guaranteed minimum length minLengthIllegalArgumentException - if minLength or padding is negativepublic static String join(String separator, short... array)
short values separated by separator.
For example, join("-", (short) 1, (short) 2, (short) 3) returns the string "1-2-3".separator - the text that should appear between consecutive values in the resulting string
(but not at the start or end)array - an array of short values, possibly emptypublic static Comparator<short[]> lexicographicalComparator()
short arrays lexicographically. That is, it
compares, using compare(short, short)), 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, [] < [(short) 1] < [(short) 1, (short) 2] < [(short) 2].
The returned comparator is inconsistent with Object.equals(Object) (since arrays
support only identity equality), but it is consistent with Arrays.equals(short[],
short[]).
public static void sortDescending(short[] array)
array in descending order.public static void sortDescending(short[] array, int fromIndex, int toIndex)
array between fromIndex inclusive and toIndex
exclusive in descending order.public static void reverse(short[] array)
array. This is equivalent to Collections.reverse(Shorts.asList(array)), but is likely to be more efficient.public static void reverse(short[] array, int fromIndex, int toIndex)
array between fromIndex inclusive and toIndex
exclusive. This is equivalent to Collections.reverse(Shorts.asList(array).subList(fromIndex, toIndex)), but is likely to be
more efficient.IndexOutOfBoundsException - if fromIndex < 0, toIndex > array.length, or
toIndex > fromIndexpublic static short[] toArray(Collection<? extends Number> collection)
collection, converted to a short
value in the manner of Number.shortValue().
Elements are copied from the argument collection as if by collection.toArray().
Calling this method is as thread-safe as calling that method.
collection - a collection of Number instancescollection, in the same order, converted
to primitivesNullPointerException - if collection or any of its elements is nullCollection<Short> before 12.0)public static List<Short> asList(short... backingArray)
Arrays.asList(Object[]). The list supports List.set(int, Object), but any attempt to
set a value to null will result in a NullPointerException.
The returned list maintains the values, but not the identities, of Short objects
written to or read from it. For example, whether list.get(0) == list.get(0) is true for
the returned list is unspecified.
backingArray - the array to back the listCopyright © 2010–2019. All rights reserved.