proguard.util

Class ArrayUtil

java.lang.Object

proguard.util.ArrayUtil

public class ArrayUtil
extends Object

This class contains utility methods operating on arrays.

Constructor Summary

Constructors

Constructor and Description
ArrayUtil()

Method Summary

Modifier and Type	Method and Description
static byte[]	add(byte[] array, int size, byte element) Adds the given element to the given array.
static int[]	add(int[] array, int size, int element) Adds the given element to the given array.
static long[]	add(long[] array, int size, long element) Adds the given element to the given array.
static Object[]	add(Object[] array, int size, Object element) Adds the given element to the given array.
static short[]	add(short[] array, int size, short element) Adds the given element to the given array.
static int	compare(byte[] array1, int size1, byte[] array2, int size2) Compares the elements of the two given arrays.
static int	compare(Comparable[] array1, int size1, Comparable[] array2, int size2) Compares the elements of the two given arrays.
static int	compare(int[] array1, int size1, int[] array2, int size2) Compares the elements of the two given arrays.
static int	compare(short[] array1, int size1, short[] array2, int size2) Compares the elements of the two given arrays.
static boolean[]	ensureArraySize(boolean[] array, int size, boolean initialValue) Ensures the given array has a given size.
static byte[]	ensureArraySize(byte[] array, int size, byte initialValue) Ensures the given array has a given size.
static int[]	ensureArraySize(int[] array, int size, int initialValue) Ensures the given array has a given size.
static long[]	ensureArraySize(long[] array, int size, long initialValue) Ensures the given array has a given size.
static Object[]	ensureArraySize(Object[] array, int size, Object initialValue) Ensures the given array has a given size.
static short[]	ensureArraySize(short[] array, int size, short initialValue) Ensures the given array has a given size.
static boolean	equal(byte[] array1, byte[] array2, int size) Returns whether the elements of the two given arrays are the same.
static boolean	equal(int[] array1, int[] array2, int size) Returns whether the elements of the two given arrays are the same.
static boolean	equal(Object[] array1, Object[] array2, int size) Returns whether the elements of the two given arrays are the same.
static boolean	equal(short[] array1, short[] array2, int size) Returns whether the elements of the two given arrays are the same.
static boolean	equalOrNull(Object[] array1, Object[] array2) Returns whether the elements of the two given arrays are the same, or both arrays are null.
static boolean	equalOrNull(Object[] array1, Object[] array2, int size) Returns whether the elements of the two given arrays are the same, or both arrays are null.
static boolean[]	extendArray(boolean[] array, int size) Ensures the given array has a given size.
static byte[]	extendArray(byte[] array, int size) Ensures the given array has a given size.
static int[]	extendArray(int[] array, int size) Ensures the given array has a given size.
static long[]	extendArray(long[] array, int size) Ensures the given array has a given size.
static Object[]	extendArray(Object[] array, int size) Ensures the given array has a given size.
static short[]	extendArray(short[] array, int size) Ensures the given array has a given size.
static int	hashCode(byte[] array, int size) Returns a hash code for the elements of the given array.
static int	hashCode(int[] array, int size) Returns a hash code for the elements of the given array.
static int	hashCode(Object[] array, int size) Returns a hash code for the elements of the given array.
static int	hashCode(short[] array, int size) Returns a hash code for the elements of the given array.
static int	hashCodeOrNull(Object[] array) Returns a hash code for the elements of the given array, or 0 if it is null.
static int	hashCodeOrNull(Object[] array, int size) Returns a hash code for the elements of the given array, or 0 if it is null.
static byte[]	insert(byte[] array, int size, int index, byte element) Inserts the given element in the given array.
static int[]	insert(int[] array, int size, int index, int element) Inserts the given element in the given array.
static long[]	insert(long[] array, int size, int index, long element) Inserts the given element in the given array.
static Object[]	insert(Object[] array, int size, int index, Object element) Inserts the given element in the given array.
static short[]	insert(short[] array, int size, int index, short element) Inserts the given element in the given array.
static void	remove(byte[] array, int size, int index) Removes the specified element from the given array.
static void	remove(int[] array, int size, int index) Removes the specified element from the given array.
static void	remove(long[] array, int size, int index) Removes the specified element from the given array.
static void	remove(Object[] array, int size, int index) Removes the specified element from the given array.
static void	remove(short[] array, int size, int index) Removes the specified element from the given array.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

equal

public static boolean equal(byte[] array1,
                            byte[] array2,
                            int size)

Returns whether the elements of the two given arrays are the same.

Parameters:

array1 - the first array.

array2 - the second array.

size - the size of the arrays to be checked.

Returns:

whether the elements are the same.

equal

public static boolean equal(short[] array1,
                            short[] array2,
                            int size)

Returns whether the elements of the two given arrays are the same.

Parameters:

array1 - the first array.

array2 - the second array.

size - the size of the arrays to be checked.

Returns:

whether the elements are the same.

equal

public static boolean equal(int[] array1,
                            int[] array2,
                            int size)

Returns whether the elements of the two given arrays are the same.

Parameters:

array1 - the first array.

array2 - the second array.

size - the size of the arrays to be checked.

Returns:

whether the elements are the same.

equal

public static boolean equal(Object[] array1,
                            Object[] array2,
                            int size)

Returns whether the elements of the two given arrays are the same.

Parameters:

array1 - the first array.

array2 - the second array.

size - the size of the arrays to be checked.

Returns:

whether the elements are the same.

equalOrNull

public static boolean equalOrNull(Object[] array1,
                                  Object[] array2)

Returns whether the elements of the two given arrays are the same, or both arrays are null.

Parameters:

array1 - the first array.

array2 - the second array.

Returns:

whether the elements are the same.

equalOrNull

public static boolean equalOrNull(Object[] array1,
                                  Object[] array2,
                                  int size)

Returns whether the elements of the two given arrays are the same, or both arrays are null.

Parameters:

array1 - the first array.

array2 - the second array.

size - the size of the arrays to be checked.

Returns:

whether the elements are the same.

hashCode

public static int hashCode(byte[] array,
                           int size)

Returns a hash code for the elements of the given array.

Parameters:

array - the array.

size - the size of the array to be taken into account.

Returns:

a hash code.

hashCode

public static int hashCode(short[] array,
                           int size)

Returns a hash code for the elements of the given array.

Parameters:

array - the array.

size - the size of the array to be taken into account.

Returns:

a hash code.

hashCode

public static int hashCode(int[] array,
                           int size)

Returns a hash code for the elements of the given array.

Parameters:

array - the array.

size - the size of the array to be taken into account.

Returns:

a hash code.

hashCode

public static int hashCode(Object[] array,
                           int size)

Returns a hash code for the elements of the given array.

Parameters:

array - the array.

size - the size of the array to be taken into account.

Returns:

a hash code.

hashCodeOrNull

public static int hashCodeOrNull(Object[] array)

Returns a hash code for the elements of the given array, or 0 if it is null.

Parameters:

array - the array.

Returns:

a hash code.

hashCodeOrNull

public static int hashCodeOrNull(Object[] array,
                                 int size)

Returns a hash code for the elements of the given array, or 0 if it is null.

Parameters:

array - the array.

size - the size of the array to be taken into account.

Returns:

a hash code.

compare

public static int compare(byte[] array1,
                          int size1,
                          byte[] array2,
                          int size2)

Compares the elements of the two given arrays.

Parameters:

array1 - the first array.

size1 - the size of the first array.

array2 - the second array.

size2 - the size of the second array.

Returns:

0 if all elements are the same, -1 if the first different element in the first array is smaller than the corresponding element in the second array, or 1 if it is larger.

compare

public static int compare(short[] array1,
                          int size1,
                          short[] array2,
                          int size2)

Compares the elements of the two given arrays.

Parameters:

array1 - the first array.

size1 - the size of the first array.

array2 - the second array.

size2 - the size of the second array.

Returns:

0 if all elements are the same, -1 if the first different element in the first array is smaller than the corresponding element in the second array, or 1 if it is larger.

compare

public static int compare(int[] array1,
                          int size1,
                          int[] array2,
                          int size2)

Compares the elements of the two given arrays.

Parameters:

array1 - the first array.

size1 - the size of the first array.

array2 - the second array.

size2 - the size of the second array.

Returns:

0 if all elements are the same, -1 if the first different element in the first array is smaller than the corresponding element in the second array, or 1 if it is larger.

compare

public static int compare(Comparable[] array1,
                          int size1,
                          Comparable[] array2,
                          int size2)

Compares the elements of the two given arrays.

Parameters:

array1 - the first array.

size1 - the size of the first array.

array2 - the second array.

size2 - the size of the second array.

Returns:

0 if all elements are the same, -1 if the first different element in the first array is smaller than the corresponding element in the second array, or 1 if it is larger.

extendArray

public static boolean[] extendArray(boolean[] array,
                                    int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static boolean[] ensureArraySize(boolean[] array,
                                        int size,
                                        boolean initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.

add

public static byte[] add(byte[] array,
                         int size,
                         byte element)

Adds the given element to the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

insert

public static byte[] insert(byte[] array,
                            int size,
                            int index,
                            byte element)

Inserts the given element in the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

index - the index at which the element is to be added.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

remove

public static void remove(byte[] array,
                          int size,
                          int index)

Removes the specified element from the given array.

Parameters:

array - the array.

size - the original size of the array.

index - the index of the element to be removed.

extendArray

public static byte[] extendArray(byte[] array,
                                 int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static byte[] ensureArraySize(byte[] array,
                                     int size,
                                     byte initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.

add

public static short[] add(short[] array,
                          int size,
                          short element)

Adds the given element to the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

insert

public static short[] insert(short[] array,
                             int size,
                             int index,
                             short element)

Inserts the given element in the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

index - the index at which the element is to be added.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

remove

public static void remove(short[] array,
                          int size,
                          int index)

Removes the specified element from the given array.

Parameters:

array - the array.

size - the original size of the array.

index - the index of the element to be removed.

extendArray

public static short[] extendArray(short[] array,
                                  int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static short[] ensureArraySize(short[] array,
                                      int size,
                                      short initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.

add

public static int[] add(int[] array,
                        int size,
                        int element)

Adds the given element to the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

insert

public static int[] insert(int[] array,
                           int size,
                           int index,
                           int element)

Inserts the given element in the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

index - the index at which the element is to be added.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

remove

public static void remove(int[] array,
                          int size,
                          int index)

Removes the specified element from the given array.

Parameters:

array - the array.

size - the original size of the array.

index - the index of the element to be removed.

extendArray

public static int[] extendArray(int[] array,
                                int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static int[] ensureArraySize(int[] array,
                                    int size,
                                    int initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.

add

public static long[] add(long[] array,
                         int size,
                         long element)

Adds the given element to the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

insert

public static long[] insert(long[] array,
                            int size,
                            int index,
                            long element)

Inserts the given element in the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

index - the index at which the element is to be added.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

remove

public static void remove(long[] array,
                          int size,
                          int index)

Removes the specified element from the given array.

Parameters:

array - the array.

size - the original size of the array.

index - the index of the element to be removed.

extendArray

public static long[] extendArray(long[] array,
                                 int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static long[] ensureArraySize(long[] array,
                                     int size,
                                     long initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.

add

public static Object[] add(Object[] array,
                           int size,
                           Object element)

Adds the given element to the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

insert

public static Object[] insert(Object[] array,
                              int size,
                              int index,
                              Object element)

Inserts the given element in the given array. The array is extended if necessary.

Parameters:

array - the array.

size - the original size of the array.

index - the index at which the element is to be added.

element - the element to be added.

Returns:

the original array, or a copy if it had to be extended.

remove

public static void remove(Object[] array,
                          int size,
                          int index)

Removes the specified element from the given array.

Parameters:

array - the array.

size - the original size of the array.

index - the index of the element to be removed.

extendArray

public static Object[] extendArray(Object[] array,
                                   int size)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

Returns:

the original array, or a copy if it had to be extended.

ensureArraySize

public static Object[] ensureArraySize(Object[] array,
                                       int size,
                                       Object initialValue)

Ensures the given array has a given size.

Parameters:

array - the array.

size - the target size of the array.

initialValue - the initial value of the elements.

Returns:

the original array, or a copy if it had to be extended.