@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 |
asList(short... backingArray)
Returns a fixed-size list backed by the specified array, similar to
Arrays.
|
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 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
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 |
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 short |
saturatedCast(long value)
Returns the
short nearest in value to
value.
|
static Converter |
stringConverter()
Returns a serializable converter object that converts between strings and shorts using
Short and
Short.
|
static short[] |
toArray(Collection
Returns an array containing each value of
collection, converted to a
short value in the manner of
Number.
|
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.
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().
value - a primitive
short value
public static short checkedCast(long value)
short value that is equal to
value, if possible.
value - any value in the range of the
short type
short value that equals
value
IllegalArgumentException - if
value is greater than
Short.MAX_VALUE or less than
Short.MIN_VALUE
public static short saturatedCast(long value)
short nearest in value to
value.
value - any
long value
short 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 small
public 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 method instead.
a - the first
short to compare
b - the second
short to compare
a is less than
b; a positive value if
a is greater than
b; or zero if they are equal
public 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 empty
target - a primitive
short value
true if
array[i] == target for some value of
i
public static int indexOf(short[] array,
short target)
target in
array.
array - an array of
short values, possibly empty
target - a primitive
short value
i 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 java.util.Arrays.copyOfRange(array, i, i + target.length) contains exactly the same elements as target.
array - the array to search for the sequence
target
target - the array to search for as a sub-sequence of
array
public static int lastIndexOf(short[] array,
short target)
target in
array.
array - an array of
short values, possibly empty
target - a primitive
short value
i 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 values
array that is less than or equal to every other value in the array
IllegalArgumentException - if
array is empty
public static short max(short... array)
array.
array - a
nonempty array of
short values
array that is greater than or equal to every other value in the array
IllegalArgumentException - if
array is empty
public 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(value="doesn\'t work") 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 to get a growable buffer.
@GwtIncompatible(value="doesn\'t work") 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(value="doesn\'t work") 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() .
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 array
minLength - the minimum length the returned array must guarantee
padding - an extra amount to "grow" the array by if growth is necessary
array, with guaranteed minimum length
minLength
IllegalArgumentException - if
minLength or
padding is negative
public static Stringjoin(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 empty
public 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 (since arrays support only identity equality), but it is consistent with Arrays.
public 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 instances
collection, in the same order, converted to primitives
NullPointerException - if
collection or any of its elements is null
Collection<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 list