android.samutils.utils

Class ArrayUtils

java.lang.Object

android.samutils.utils.ArrayUtils

public final class ArrayUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static boolean[]	EMPTY_BOOLEAN_ARRAY
static byte[]	EMPTY_BYTE_ARRAY
static char[]	EMPTY_CHAR_ARRAY
static double[]	EMPTY_DOUBLE_ARRAY
static float[]	EMPTY_FLOAT_ARRAY
static int[]	EMPTY_INT_ARRAY
static long[]	EMPTY_LONG_ARRAY
static short[]	EMPTY_SHORT_ARRAY
static java.lang.String[]	EMPTY_STRING_ARRAY
static int	INDEX_NOT_FOUND

Constructor Summary

Constructors

Constructor and Description
ArrayUtils()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.List<T>	asModifiableList(T[] array)
static <T> T[]	clone(T[] array)
static <T> T[]	concat(T[] first, T[] second)
static <T> T[]	emptyArray(java.lang.Class<T> componentType)
static <T> int	getLength(T[] array)
static int	indexOf(boolean[] array, boolean value)
static int	indexOf(double[] array, double value)
static int	indexOf(float[] array, float value)
static int	indexOf(int[] array, int value)
static int	indexOf(long[] array, long value)
static <T> int	indexOf(T[] array, T value)
static <T extends java.lang.Enum<?>> int	indexOf(T[] array, T value)
static int	indexOfSubArray(int[][] array, int[] subArray)
static boolean	isEmpty(boolean[] array)
static boolean	isEmpty(byte[] array)
static boolean	isEmpty(double[] array)
static boolean	isEmpty(float[] array)
static boolean	isEmpty(int[] array)
static boolean	isEmpty(long[] array)
static <T> boolean	isEmpty(T[] array)
static <T> T[]	newArray(java.lang.Class<T> componentType, int size)
static <T> T[]	remove(T[] array, int index)
static <T> T[]	removeElement(T[] array, java.lang.Object element) Removes the first occurrence of the specified element from the specified array.
static <T> T[]	toArray(java.util.Collection<T> collection, java.lang.Class<T> componentType)
static <T extends java.lang.Comparable<T>> T[]	toArrayAndSort(java.util.Collection<T> collection, java.lang.Class<T> componentType)
static boolean[]	toPrimitive(java.lang.Boolean[] array)
static byte[]	toPrimitive(java.lang.Byte[] array)
static char[]	toPrimitive(java.lang.Character[] array)
static double[]	toPrimitive(java.lang.Double[] array)
static float[]	toPrimitive(java.lang.Float[] array)
static int[]	toPrimitive(java.lang.Integer[] array)
static int[]	toPrimitive(java.util.List<java.lang.Integer> array)
static long[]	toPrimitive(java.lang.Long[] array)
static short[]	toPrimitive(java.lang.Short[] array)
static byte[]	toPrimitiveByte(java.util.List<java.lang.Byte> array)
static char[]	toPrimitiveChar(java.util.List<java.lang.Integer> array)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_LONG_ARRAY

public static final long[] EMPTY_LONG_ARRAY

EMPTY_INT_ARRAY

public static final int[] EMPTY_INT_ARRAY

EMPTY_SHORT_ARRAY

public static final short[] EMPTY_SHORT_ARRAY

EMPTY_BYTE_ARRAY

public static final byte[] EMPTY_BYTE_ARRAY

EMPTY_DOUBLE_ARRAY

public static final double[] EMPTY_DOUBLE_ARRAY

EMPTY_FLOAT_ARRAY

public static final float[] EMPTY_FLOAT_ARRAY

EMPTY_BOOLEAN_ARRAY

public static final boolean[] EMPTY_BOOLEAN_ARRAY

EMPTY_CHAR_ARRAY

public static final char[] EMPTY_CHAR_ARRAY

EMPTY_STRING_ARRAY

public static final java.lang.String[] EMPTY_STRING_ARRAY

INDEX_NOT_FOUND

public static final int INDEX_NOT_FOUND

See Also:

Constant Field Values

Constructor Detail

ArrayUtils

public ArrayUtils()

Method Detail

emptyArray

public static <T> T[] emptyArray(java.lang.Class<T> componentType)

newArray

public static <T> T[] newArray(java.lang.Class<T> componentType,
                               int size)

concat

public static <T> T[] concat(T[] first,
                             T[] second)

indexOf

public static int indexOf(boolean[] array,
                          boolean value)

indexOf

public static int indexOf(int[] array,
                          int value)

indexOf

public static int indexOf(long[] array,
                          long value)

indexOf

public static int indexOf(float[] array,
                          float value)

indexOf

public static int indexOf(double[] array,
                          double value)

indexOf

public static <T> int indexOf(T[] array,
                              T value)

indexOfSubArray

public static int indexOfSubArray(int[][] array,
                                  int[] subArray)

indexOf

public static <T extends java.lang.Enum<?>> int indexOf(T[] array,
                                                        T value)

remove

public static <T> T[] remove(T[] array,
                             int index)

getLength

public static <T> int getLength(T[] array)

isEmpty

public static boolean isEmpty(boolean[] array)

isEmpty

public static boolean isEmpty(byte[] array)

isEmpty

public static boolean isEmpty(int[] array)

isEmpty

public static boolean isEmpty(long[] array)

isEmpty

public static boolean isEmpty(float[] array)

isEmpty

public static boolean isEmpty(double[] array)

isEmpty

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

asModifiableList

public static <T> java.util.List<T> asModifiableList(T[] array)

toArray

public static <T> T[] toArray(java.util.Collection<T> collection,
                              java.lang.Class<T> componentType)

toArrayAndSort

public static <T extends java.lang.Comparable<T>> T[] toArrayAndSort(java.util.Collection<T> collection,
                                                                     java.lang.Class<T> componentType)

toPrimitive

public static char[] toPrimitive(java.lang.Character[] array)

toPrimitive

public static long[] toPrimitive(java.lang.Long[] array)

toPrimitive

public static int[] toPrimitive(java.lang.Integer[] array)

toPrimitive

public static int[] toPrimitive(java.util.List<java.lang.Integer> array)

toPrimitiveByte

public static byte[] toPrimitiveByte(java.util.List<java.lang.Byte> array)

toPrimitiveChar

public static char[] toPrimitiveChar(java.util.List<java.lang.Integer> array)

toPrimitive

public static short[] toPrimitive(java.lang.Short[] array)

toPrimitive

public static byte[] toPrimitive(java.lang.Byte[] array)

toPrimitive

public static double[] toPrimitive(java.lang.Double[] array)

toPrimitive

public static float[] toPrimitive(java.lang.Float[] array)

toPrimitive

public static boolean[] toPrimitive(java.lang.Boolean[] array)

clone

public static <T> T[] clone(T[] array)

removeElement

public static <T> T[] removeElement(T[] array,
                                    java.lang.Object element)

Removes the first occurrence of the specified element from the specified array. All subsequent elements are shifted to the left (subtracts one from their indices). If the array doesn't contains such an element, no elements are removed from the array.

This method returns a new array with the same elements of the input array except the first occurrence of the specified element. The component type of the returned array is always the same as that of the input array.

 ArrayUtils.removeElement(null, "a")            = null
 ArrayUtils.removeElement([], "a")              = []
 ArrayUtils.removeElement(["a"], "b")           = ["a"]
 ArrayUtils.removeElement(["a", "b"], "a")      = ["b"]
 ArrayUtils.removeElement(["a", "b", "a"], "a") = ["b", "a"]
 

Type Parameters:

T - the component type of the array

Parameters:

array - the array to remove the element from, may be null

element - the element to be removed

Returns:

A new array containing the existing elements except the first occurrence of the specified element.

Since:

2.1