java.util
Class Arrays

java.lang.Object
  java.util.Arrays

public class Arrays
extends Object

Arrays contains static methods which operate on arrays.

Since:

1.2

Method Summary

static <T> List<T>	asList(T... array) Returns a List on the objects in the specified array.
static int	binarySearch(byte[] array, byte value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(char[] array, char value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(double[] array, double value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(float[] array, float value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(int[] array, int value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(long[] array, long value) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(Object[] array, Object object) Performs a binary search for the specified element in the specified sorted array.
static int	binarySearch(short[] array, short value) Performs a binary search for the specified element in the specified sorted array.
static <T> int	binarySearch(T[] array, T object, Comparator<? super T> comparator) Performs a binary search for the specified element in the specified sorted array using the Comparator to compare elements.
static boolean	deepEquals(Object[] array1, Object[] array2) Returns true if the two given arrays are deeply equal to one another.
static int	deepHashCode(Object[] array) Returns a hash code based on the "deep contents" of the given array.
static String	deepToString(Object[] array) Creates a "deep" String representation of the Object[] passed, such that if the array contains other arrays, the String representation of those arrays is generated as well.
static boolean	equals(boolean[] array1, boolean[] array2) Compares the two arrays.
static boolean	equals(byte[] array1, byte[] array2) Compares the two arrays.
static boolean	equals(char[] array1, char[] array2) Compares the two arrays.
static boolean	equals(double[] array1, double[] array2) Compares the two arrays.
static boolean	equals(float[] array1, float[] array2) Compares the two arrays.
static boolean	equals(int[] array1, int[] array2) Compares the two arrays.
static boolean	equals(long[] array1, long[] array2) Compares the two arrays.
static boolean	equals(Object[] array1, Object[] array2) Compares the two arrays.
static boolean	equals(short[] array1, short[] array2) Compares the two arrays.
static void	fill(boolean[] array, boolean value) Fills the specified array with the specified element.
static void	fill(boolean[] array, int start, int end, boolean value) Fills the specified range in the array with the specified element.
static void	fill(byte[] array, byte value) Fills the specified array with the specified element.
static void	fill(byte[] array, int start, int end, byte value) Fills the specified range in the array with the specified element.
static void	fill(char[] array, char value) Fills the specified array with the specified element.
static void	fill(char[] array, int start, int end, char value) Fills the specified range in the array with the specified element.
static void	fill(double[] array, double value) Fills the specified array with the specified element.
static void	fill(double[] array, int start, int end, double value) Fills the specified range in the array with the specified element.
static void	fill(float[] array, float value) Fills the specified array with the specified element.
static void	fill(float[] array, int start, int end, float value) Fills the specified range in the array with the specified element.
static void	fill(int[] array, int value) Fills the specified array with the specified element.
static void	fill(int[] array, int start, int end, int value) Fills the specified range in the array with the specified element.
static void	fill(long[] array, int start, int end, long value) Fills the specified range in the array with the specified element.
static void	fill(long[] array, long value) Fills the specified array with the specified element.
static void	fill(Object[] array, int start, int end, Object value) Fills the specified range in the array with the specified element.
static void	fill(Object[] array, Object value) Fills the specified array with the specified element.
static void	fill(short[] array, int start, int end, short value) Fills the specified range in the array with the specified element.
static void	fill(short[] array, short value) Fills the specified array with the specified element.
static int	hashCode(boolean[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(byte[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(char[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(double[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(float[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(int[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(long[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(Object[] array) Returns a hash code based on the contents of the given array.
static int	hashCode(short[] array) Returns a hash code based on the contents of the given array.
static void	sort(byte[] array) Sorts the specified array in ascending order.
static void	sort(byte[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(char[] array) Sorts the specified array in ascending order.
static void	sort(char[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(double[] array) Sorts the specified array in ascending order.
static void	sort(double[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(float[] array) Sorts the specified array in ascending order.
static void	sort(float[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(int[] array) Sorts the specified array in ascending order.
static void	sort(int[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(long[] array) Sorts the specified array in ascending order.
static void	sort(long[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(Object[] array) Sorts the specified array in ascending order.
static void	sort(Object[] array, int start, int end) Sorts the specified range in the array in ascending order.
static void	sort(short[] array) Sorts the specified array in ascending order.
static void	sort(short[] array, int start, int end) Sorts the specified range in the array in ascending order.
static <T> void	sort(T[] array, Comparator<? super T> comparator) Sorts the specified array using the specified Comparator.
static <T> void	sort(T[] array, int start, int end, Comparator<? super T> comparator) Sorts the specified range in the array using the specified Comparator.
static String	toString(boolean[] array) Creates a String representation of the boolean[] passed.
static String	toString(byte[] array) Creates a String representation of the byte[] passed.
static String	toString(char[] array) Creates a String representation of the char[] passed.
static String	toString(double[] array) Creates a String representation of the double[] passed.
static String	toString(float[] array) Creates a String representation of the float[] passed.
static String	toString(int[] array) Creates a String representation of the int[] passed.
static String	toString(long[] array) Creates a String representation of the long[] passed.
static String	toString(Object[] array) Creates a String representation of the Object[] passed.
static String	toString(short[] array) Creates a String representation of the short[] passed.

Methods inherited from class java.lang.Object

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

Method Detail

asList

public static <T> List<T> asList(T... array)

Returns a List on the objects in the specified array. The size of the List cannot be modified, i.e. adding and removing are unsupported, but the elements can be set. Setting an element modifies the underlying array.

Parameters:

array - the array

Returns:

a List on the specified array

binarySearch

public static int binarySearch(byte[] array,
                               byte value)

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted byte array to search

value - the byte element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

public static int binarySearch(char[] array,
                               char value)

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted char array to search

value - the char element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

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

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted double array to search

value - the double element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

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

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted float array to search

value - the float element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

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

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted int array to search

value - the int element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

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

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted long array to search

value - the long element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

binarySearch

public static int binarySearch(Object[] array,
                               Object object)

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted Object array to search

object - the Object element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

Throws:

ClassCastException - when an element in the array or the search element does not implement Comparable, or cannot be compared to each other

binarySearch

public static <T> int binarySearch(T[] array,
                                   T object,
                                   Comparator<? super T> comparator)

Performs a binary search for the specified element in the specified sorted array using the Comparator to compare elements.

Parameters:

array - the sorted char array to search

object - the char element to find

comparator - the Comparator

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

Throws:

ClassCastException - when an element in the array and the search element cannot be compared to each other using the Comparator

binarySearch

public static int binarySearch(short[] array,
                               short value)

Performs a binary search for the specified element in the specified sorted array.

Parameters:

array - the sorted short array to search

value - the short element to find

Returns:

the non-negative index of the element, or a negative index which is the -index - 1 where the element would be inserted

fill

public static void fill(byte[] array,
                        byte value)

Fills the specified array with the specified element.

Parameters:

array - the byte array to fill

value - the byte element

fill

public static void fill(byte[] array,
                        int start,
                        int end,
                        byte value)

Fills the specified range in the array with the specified element.

Parameters:

array - the byte array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the byte element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(short[] array,
                        short value)

Fills the specified array with the specified element.

Parameters:

array - the short array to fill

value - the short element

fill

public static void fill(short[] array,
                        int start,
                        int end,
                        short value)

Fills the specified range in the array with the specified element.

Parameters:

array - the short array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the short element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(char[] array,
                        char value)

Fills the specified array with the specified element.

Parameters:

array - the char array to fill

value - the char element

fill

public static void fill(char[] array,
                        int start,
                        int end,
                        char value)

Fills the specified range in the array with the specified element.

Parameters:

array - the char array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the char element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(int[] array,
                        int value)

Fills the specified array with the specified element.

Parameters:

array - the int array to fill

value - the int element

fill

public static void fill(int[] array,
                        int start,
                        int end,
                        int value)

Fills the specified range in the array with the specified element.

Parameters:

array - the int array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the int element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(long[] array,
                        long value)

Fills the specified array with the specified element.

Parameters:

array - the long array to fill

value - the long element

fill

public static void fill(long[] array,
                        int start,
                        int end,
                        long value)

Fills the specified range in the array with the specified element.

Parameters:

array - the long array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the long element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(float[] array,
                        float value)

Fills the specified array with the specified element.

Parameters:

array - the float array to fill

value - the float element

fill

public static void fill(float[] array,
                        int start,
                        int end,
                        float value)

Fills the specified range in the array with the specified element.

Parameters:

array - the float array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the float element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(double[] array,
                        double value)

Fills the specified array with the specified element.

Parameters:

array - the float array to fill

value - the float element

fill

public static void fill(double[] array,
                        int start,
                        int end,
                        double value)

Fills the specified range in the array with the specified element.

Parameters:

array - the double array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the double element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(boolean[] array,
                        boolean value)

Fills the specified array with the specified element.

Parameters:

array - the boolean array to fill

value - the boolean element

fill

public static void fill(boolean[] array,
                        int start,
                        int end,
                        boolean value)

Fills the specified range in the array with the specified element.

Parameters:

array - the boolean array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the boolean element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

fill

public static void fill(Object[] array,
                        Object value)

Fills the specified array with the specified element.

Parameters:

array - the Object array to fill

value - the Object element

fill

public static void fill(Object[] array,
                        int start,
                        int end,
                        Object value)

Fills the specified range in the array with the specified element.

Parameters:

array - the Object array to fill

start - the first index to fill

end - the last + 1 index to fill

value - the Object element

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

hashCode

public static int hashCode(boolean[] array)

Returns a hash code based on the contents of the given array. For any two boolean arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Boolean} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(int[] array)

Returns a hash code based on the contents of the given array. For any two not-null int arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Integer} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(short[] array)

Returns a hash code based on the contents of the given array. For any two short arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Short} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(char[] array)

Returns a hash code based on the contents of the given array. For any two char arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Character} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(byte[] array)

Returns a hash code based on the contents of the given array. For any two byte arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Byte} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(long[] array)

Returns a hash code based on the contents of the given array. For any two long arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Long} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(float[] array)

Returns a hash code based on the contents of the given array. For any two float arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Float} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(double[] array)

Returns a hash code based on the contents of the given array. For any two double arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the List.hashCode()} method which is invoked on a List} containing a sequence of Double} instances representing the elements of array in the same order. If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

hashCode

public static int hashCode(Object[] array)

Returns a hash code based on the contents of the given array. If the array contains other arrays as its elements, the hash code is based on their identities not their contents. So it is acceptable to invoke this method on an array that contains itself as an element, either directly or indirectly. For any two arrays a and b, if Arrays.equals(a, b) returns true, it means that the return value of Arrays.hashCode(a) equals Arrays.hashCode(b). The value returned by this method is the same value as the method Arrays.asList(array).hashCode(). If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

deepHashCode

public static int deepHashCode(Object[] array)

Returns a hash code based on the "deep contents" of the given array. If the array contains other arrays as its elements, the hash code is based on their contents not their identities. So It is not acceptable to invoke this method on an array that contains itself as an element, either directly or indirectly. For any two arrays a and b, if Arrays.deepEquals(a, b) returns true, it means that the return value of Arrays.deepHashCode(a) equals Arrays.deepHashCode(b). The computation of the value returned by this method is similar to that of the value returned by List.hashCode()} method invoked on a List} containing a sequence of instances representing the elements of array in the same order. The difference is: If an element e of array is itself an array, its hash code is computed by calling the appropriate overloading of Arrays.hashCode(e) if e is an array of a primitive type, or by calling Arrays.deepHashCode(e) recursively if e is an array of a reference type. The value returned by this method is the same value as the method Arrays.asList(array).hashCode(). If the array is null, the return value is 0.

Parameters:

array - the array whose hash code to compute

Returns:

the hash code for array

equals

public static boolean equals(byte[] array1,
                             byte[] array2)

Compares the two arrays.

Parameters:

array1 - the first byte array

array2 - the second byte array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

public static boolean equals(short[] array1,
                             short[] array2)

Compares the two arrays.

Parameters:

array1 - the first short array

array2 - the second short array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

public static boolean equals(char[] array1,
                             char[] array2)

Compares the two arrays.

Parameters:

array1 - the first char array

array2 - the second char array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

public static boolean equals(int[] array1,
                             int[] array2)

Compares the two arrays.

Parameters:

array1 - the first int array

array2 - the second int array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

public static boolean equals(long[] array1,
                             long[] array2)

Compares the two arrays.

Parameters:

array1 - the first long array

array2 - the second long array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

public static boolean equals(float[] array1,
                             float[] array2)

Compares the two arrays. The values are compared in the same manner as Float.equals().

Parameters:

array1 - the first float array

array2 - the second float array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

See Also:

Float.equals(Object)

equals

public static boolean equals(double[] array1,
                             double[] array2)

Compares the two arrays. The values are compared in the same manner as Double.equals().

Parameters:

array1 - the first double array

array2 - the second double array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

See Also:

Double.equals(Object)

equals

public static boolean equals(boolean[] array1,
                             boolean[] array2)

Compares the two arrays.

Parameters:

array1 - the first boolean array

array2 - the second boolean array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

equals

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

Compares the two arrays.

Parameters:

array1 - the first Object array

array2 - the second Object array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

deepEquals

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

Returns true if the two given arrays are deeply equal to one another. Unlike the method equals(Object[] array1, Object[] array2), this method is appropriate for use for nested arrays of arbitrary depth. Two array references are considered deeply equal if they are both null, or if they refer to arrays that have the same length and the elements at each index in the two arrays are equal. Two null elements element1 and element2 are possibly deeply equal if any of the following conditions satisfied: element1 and element2 are both arrays of object reference types, and Arrays.deepEquals(element1, element2) would return true. element1 and element2 are arrays of the same primitive type, and the appropriate overloading of Arrays.equals(element1, element2) would return true. element1 == element2 element1.equals(element2) would return true. Note that this definition permits null elements at any depth. If either of the given arrays contain themselves as elements, the behavior of this method is incertitude.

Parameters:

array1 - the first Object array

array2 - the second Object array

Returns:

true when the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise

sort

public static void sort(byte[] array)

Sorts the specified array in ascending order.

Parameters:

array - the byte array to be sorted

sort

public static void sort(byte[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the byte array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static void sort(char[] array)

Sorts the specified array in ascending order.

Parameters:

array - the char array to be sorted

sort

public static void sort(char[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the char array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static void sort(double[] array)

Sorts the specified array in ascending order.

Parameters:

array - the double array to be sorted

See Also:

sort(double[], int, int)

sort

public static void sort(double[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order. The values are sorted according to the order imposed by Double.compareTo().

Parameters:

array - the double array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

See Also:

Double.compareTo(Double)

sort

public static void sort(float[] array)

Sorts the specified array in ascending order.

Parameters:

array - the float array to be sorted

See Also:

sort(float[], int, int)

sort

public static void sort(float[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order. The values are sorted according to the order imposed by Float.compareTo().

Parameters:

array - the float array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

See Also:

Float.compareTo(Float)

sort

public static void sort(int[] array)

Sorts the specified array in ascending order.

Parameters:

array - the int array to be sorted

sort

public static void sort(int[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the int array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static void sort(long[] array)

Sorts the specified array in ascending order.

Parameters:

array - the long array to be sorted

sort

public static void sort(long[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the long array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static void sort(Object[] array)

Sorts the specified array in ascending order.

Parameters:

array - the Object array to be sorted

Throws:

ClassCastException - when an element in the array does not implement Comparable or elements cannot be compared to each other

sort

public static void sort(Object[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the Object array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

ClassCastException - when an element in the array does not implement Comparable or elements cannot be compared to each other

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static <T> void sort(T[] array,
                            int start,
                            int end,
                            Comparator<? super T> comparator)

Sorts the specified range in the array using the specified Comparator.

Parameters:

array - the Object array to be sorted

start - the start index to sort

end - the last + 1 index to sort

comparator - the Comparator

Throws:

ClassCastException - when elements in the array cannot be compared to each other using the Comparator

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

sort

public static <T> void sort(T[] array,
                            Comparator<? super T> comparator)

Sorts the specified array using the specified Comparator.

Parameters:

array - the Object array to be sorted

comparator - the Comparator

Throws:

ClassCastException - when elements in the array cannot be compared to each other using the Comparator

sort

public static void sort(short[] array)

Sorts the specified array in ascending order.

Parameters:

array - the short array to be sorted

sort

public static void sort(short[] array,
                        int start,
                        int end)

Sorts the specified range in the array in ascending order.

Parameters:

array - the short array to be sorted

start - the start index to sort

end - the last + 1 index to sort

Throws:

IllegalArgumentException - when start > end

ArrayIndexOutOfBoundsException - when start < 0 or end > array.size()

toString

public static String toString(boolean[] array)

Creates a String representation of the boolean[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(boolean) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The boolean array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(byte[] array)

Creates a String representation of the byte[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(int) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The byte array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(char[] array)

Creates a String representation of the char[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(char) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The char array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(double[] array)

Creates a String representation of the double[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(double) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The double array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(float[] array)

Creates a String representation of the float[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(float) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The float array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(int[] array)

Creates a String representation of the int[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(int) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The int array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(long[] array)

Creates a String representation of the long[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(long) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The long array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(short[] array)

Creates a String representation of the short[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(int) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The short array to convert.

Returns:

The String representation of array.

Since:

1.5

toString

public static String toString(Object[] array)

Creates a String representation of the Object[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the String.valueOf(Object) and separated by ", ". If the array is null, then "null" is returned.

Parameters:

array - The Object array to convert.

Returns:

The String representation of array.

Since:

1.5

deepToString

public static String deepToString(Object[] array)

Creates a "deep" String representation of the Object[] passed, such that if the array contains other arrays, the String representation of those arrays is generated as well.

If any of the elements are primitive arrays, the generation is delegated to the other toString methods in this class. If any element contains a reference to the original array, then it will be represented as "[...]". If an element is an Object[], then its representation is generated by a recursive call to this method. All other elements are converted via the String.valueOf(Object) method.

Parameters:

array - The Object array to convert.

Returns:

The String representation of array.

Since:

1.5