com.caoccao.javet.utils

Class ArrayUtils

java.lang.Object

com.caoccao.javet.utils.ArrayUtils

public final class ArrayUtils
extends java.lang.Object

The type Array utils.

Since:

3.0.3

Constructor Summary

Constructors

Constructor and Description
ArrayUtils()

Method Summary

Modifier and Type	Method and Description
static java.lang.Object[]	copyOf(java.lang.Object object) Get a copy of the array object.
static <T> boolean	includes(java.lang.Object object, T element, int fromIndex) The includes() method of Array instances determines whether an array includes a certain value among its entries, returning true or false as appropriate.
static <T> int	indexOf(java.lang.Object object, T element, int fromIndex) The indexOf() method of Array instances returns the first index at which a given element can be found in the array, or -1 if it is not present.
static boolean	isEmpty(byte[] array) Test if the input byte array is empty.
static boolean	isEmpty(long[] array) Test if the input long array is empty.
static <T> boolean	isEmpty(T[] array) Test if the input array is empty.
static boolean	isNotEmpty(byte[] array) Test if the input byte array is not empty.
static boolean	isNotEmpty(long[] array) Test if the input long array is not empty.
static <T> boolean	isNotEmpty(T[] array) Test if the input array is not empty.
static <T> int	lastIndexOf(java.lang.Object object, T element, int fromIndex) The lastIndexOf() method of Array instances returns the last index at which a given element can be found in the array, or -1 if it is not present.
static void	reverse(java.lang.Object object) Reverse an array object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtils

public ArrayUtils()

Method Detail

copyOf

public static java.lang.Object[] copyOf(java.lang.Object object)

Get a copy of the array object.

Parameters:

object - the array object

Returns:

the new array

Since:

3.0.4

includes

public static <T> boolean includes(java.lang.Object object,
                                   T element,
                                   int fromIndex)

The includes() method of Array instances determines whether an array includes a certain value among its entries, returning true or false as appropriate.

Type Parameters:

T - the type parameter

Parameters:

object - the object

element - the element

fromIndex - the from index

Returns:

true : included, false : not included

Since:

3.0.4

indexOf

public static <T> int indexOf(java.lang.Object object,
                              T element,
                              int fromIndex)

The indexOf() method of Array instances returns the first index at which a given element can be found in the array, or -1 if it is not present.

Type Parameters:

T - the type parameter

Parameters:

object - the object

element - the element

fromIndex - the from index

Returns:

the index

Since:

3.0.4

isEmpty

public static boolean isEmpty(byte[] array)

Test if the input byte array is empty.

Parameters:

array - the array

Returns:

true : empty, false : not empty

Since:

3.0.3

isEmpty

public static boolean isEmpty(long[] array)

Test if the input long array is empty.

Parameters:

array - the array

Returns:

true : empty, false : not empty

Since:

3.0.3

isEmpty

public static <T> boolean isEmpty(T[] array)

Test if the input array is empty.

Type Parameters:

T - the type parameter

Parameters:

array - the array

Returns:

true : empty, false : not empty

Since:

3.0.3

isNotEmpty

public static boolean isNotEmpty(byte[] array)

Test if the input byte array is not empty.

Parameters:

array - the array

Returns:

true : not empty, false : empty

Since:

3.0.3

isNotEmpty

public static boolean isNotEmpty(long[] array)

Test if the input long array is not empty.

Parameters:

array - the array

Returns:

true : not empty, false : empty

Since:

3.0.3

isNotEmpty

public static <T> boolean isNotEmpty(T[] array)

Test if the input array is not empty.

Type Parameters:

T - the type parameter

Parameters:

array - the array

Returns:

true : not empty, false : empty

Since:

3.0.3

lastIndexOf

public static <T> int lastIndexOf(java.lang.Object object,
                                  T element,
                                  int fromIndex)

The lastIndexOf() method of Array instances returns the last index at which a given element can be found in the array, or -1 if it is not present. The array is searched backwards, starting at fromIndex.

Type Parameters:

T - the type parameter

Parameters:

object - the object

element - the element

fromIndex - the from index

Returns:

the index

Since:

3.0.4

reverse

public static void reverse(java.lang.Object object)

Reverse an array object.

Parameters:

object - the object