public class

Arrays

extends Object
java.lang.Object
   ↳ java.util.Arrays

Class Overview

Arrays contains static methods which operate on arrays.

Summary

Public Methods
static <T> List<T> asList(T... array)
Returns a List of the objects in the specified array.
static int binarySearch(short[] array, short value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(long[] array, long value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(int[] array, int value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(char[] array, char value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(byte[] array, byte value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(double[] array, double value)
Performs a binary search for the specified element in the specified ascending sorted array.
static <T> int binarySearch(T[] array, T value, Comparator<? super T> comparator)
Performs a binary search for the specified element in the specified ascending sorted array using the Comparator to compare elements.
static int binarySearch(float[] array, float value)
Performs a binary search for the specified element in the specified ascending sorted array.
static int binarySearch(Object[] array, Object value)
Performs a binary search for the specified element in the specified ascending sorted array.
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(float[] array1, float[] array2)
Compares the two arrays.
static boolean equals(long[] array1, long[] array2)
Compares the two arrays.
static boolean equals(double[] array1, double[] array2)
Compares the two arrays.
static boolean equals(byte[] array1, byte[] array2)
Compares the two arrays.
static boolean equals(short[] array1, short[] array2)
Compares the two arrays.
static boolean equals(Object[] array1, Object[] array2)
Compares the two arrays.
static boolean equals(char[] array1, char[] array2)
Compares the two arrays.
static boolean equals(int[] array1, int[] array2)
Compares the two arrays.
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(short[] array, short 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(Object[] array, Object 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(byte[] array, int start, int end, byte 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(float[] array, float value)
Fills the specified array with the specified element.
static void fill(boolean[] array, boolean 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(char[] array, char 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(char[] array, int start, int end, char 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(Object[] array, int start, int end, Object 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(long[] array, int start, int end, long 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 int hashCode(boolean[] 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(double[] 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(char[] 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(float[] 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(short[] array)
Returns a hash code based on the contents of the given array.
static void sort(long[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(Object[] array, int start, int end)
Sorts the specified range in the array in ascending natural order.
static void sort(double[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(long[] array)
Sorts the specified array in ascending numerical order.
static void sort(double[] array)
Sorts the specified array in ascending numerical order.
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 void sort(char[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(char[] array)
Sorts the specified array in ascending numerical order.
static void sort(Object[] array)
Sorts the specified array in ascending natural order.
static void sort(byte[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(float[] array)
Sorts the specified array in ascending numerical order.
static void sort(short[] array)
Sorts the specified array in ascending numerical order.
static void sort(int[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(byte[] array)
Sorts the specified array in ascending numerical order.
static <T> void sort(T[] array, Comparator<? super T> comparator)
Sorts the specified array using the specified Comparator.
static void sort(short[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(float[] array, int start, int end)
Sorts the specified range in the array in ascending numerical order.
static void sort(int[] array)
Sorts the specified array in ascending numerical order.
static String toString(boolean[] array)
Creates a String representation of the boolean[] passed.
static String toString(double[] array)
Creates a String representation of the double[] passed.
static String toString(byte[] array)
Creates a String representation of the byte[] passed.
static String toString(float[] array)
Creates a String representation of the float[] passed.
static String toString(short[] array)
Creates a String representation of the short[] passed.
static String toString(long[] array)
Creates a String representation of the long[] passed.
static String toString(int[] array)
Creates a String representation of the int[] passed.
static String toString(char[] array)
Creates a String representation of the char[] passed.
static String toString(Object[] array)
Creates a String representation of the Object[] passed.
[Expand]
Inherited Methods
From class java.lang.Object

Public Methods

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

Since: API Level 1

Returns a List of 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 of the elements of the specified array.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array using the Comparator to compare elements. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

Parameters
array the sorted array to search
value the element to find
comparator the Comparator sued to compare the elements.
Returns
  • the non-negative index of the element, or a negative index which is -index - 1 where the element would be inserted.
Throws
ClassCastException if an element in the array cannot be compared to the search element using the Comparator.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

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 -index - 1 where the element would be inserted.

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

Since: API Level 1

Performs a binary search for the specified element in the specified ascending sorted array. Searching in an unsorted array has an undefined result. It's also undefined which element is found if there are multiple occurrences of the same element.

Parameters
array the sorted Object array to search.
value the Object element to find.
Returns
  • the non-negative index of the element, or a negative index which is -index - 1 where the element would be inserted.
Throws
ClassCastException if an element in the array or the search element does not implement Comparable, or cannot be compared to each other.

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

Since: API Level 1

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 uncertain.

Parameters
array1 the first Object array.
array2 the second Object array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal according to equals(), false otherwise.

public static int deepHashCode (Object[] array)

Since: API Level 1

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 hashCode()} 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.

public static String deepToString (Object[] array)

Since: API Level 1

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 valueOf(Object) method.

Parameters
array the Object array to convert.
Returns
  • the String representation of array.

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first boolean array.
array2 the second boolean array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

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 if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.
See Also

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first long array.
array2 the second long array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

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 if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.
See Also

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first byte array.
array2 the second byte array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first short array.
array2 the second short array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first Object array.
array2 the second Object array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal according to equals(), false otherwise.

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first char array.
array2 the second char array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

Compares the two arrays.

Parameters
array1 the first int array.
array2 the second int array.
Returns
  • true if both arrays are null or if the arrays have the same length and the elements at each index in the two arrays are equal, false otherwise.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the short array to fill.
value the short element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the Object array to fill.
value the Object element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the long array to fill.
value the long element.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the float array to fill.
value the float element.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the boolean array to fill.
value the boolean element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the char array to fill.
value the char element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the int array to fill.
value the int element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the double array to fill.
value the double element.

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

Since: API Level 1

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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Fills the specified array with the specified element.

Parameters
array the byte array to fill.
value the byte element.

public static int hashCode (boolean[] array)

Since: API Level 1

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 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.

public static int hashCode (Object[] array)

Since: API Level 1

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.

public static int hashCode (double[] array)

Since: API Level 1

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 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.

public static int hashCode (int[] array)

Since: API Level 1

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 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.

public static int hashCode (char[] array)

Since: API Level 1

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 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.

public static int hashCode (long[] array)

Since: API Level 1

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 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.

public static int hashCode (float[] array)

Since: API Level 1

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 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.

public static int hashCode (byte[] array)

Since: API Level 1

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 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.

public static int hashCode (short[] array)

Since: API Level 1

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 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.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical order.

Parameters
array the long array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Sorts the specified range in the array in ascending natural order. All elements must implement the Comparable interface and must be comparable to each other without a ClassCastException being thrown.

Parameters
array the Object array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
ClassCastException if an element in the array does not implement Comparable or some elements cannot be compared to each other.
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical 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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.
See Also

public static void sort (long[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the long array to be sorted.

public static void sort (double[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the double array to be sorted.
See Also

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

Since: API Level 1

Sorts the specified range in the array using the specified Comparator. All elements must be comparable to each other without a ClassCastException being thrown.

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 if elements in the array cannot be compared to each other using the Comparator.
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical order.

Parameters
array the char array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

public static void sort (char[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the char array to be sorted.

public static void sort (Object[] array)

Since: API Level 1

Sorts the specified array in ascending natural order.

Parameters
array the Object array to be sorted.
Throws
ClassCastException if an element in the array does not implement Comparable or if some elements cannot be compared to each other.
See Also

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical order.

Parameters
array the byte array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

public static void sort (float[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the float array to be sorted.
See Also

public static void sort (short[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the short array to be sorted.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical order.

Parameters
array the int array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

public static void sort (byte[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the byte array to be sorted.

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

Since: API Level 1

Sorts the specified array using the specified Comparator. All elements must be comparable to each other without a ClassCastException being thrown.

Parameters
array the Object array to be sorted.
comparator the Comparator.
Throws
ClassCastException if elements in the array cannot be compared to each other using the Comparator.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical order.

Parameters
array the short array to be sorted.
start the start index to sort.
end the last + 1 index to sort.
Throws
IllegalArgumentException if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.

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

Since: API Level 1

Sorts the specified range in the array in ascending numerical 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 if start > end.
ArrayIndexOutOfBoundsException if start < 0 or end > array.length.
See Also

public static void sort (int[] array)

Since: API Level 1

Sorts the specified array in ascending numerical order.

Parameters
array the int array to be sorted.

public static String toString (boolean[] array)

Since: API Level 1

Creates a String representation of the boolean[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (double[] array)

Since: API Level 1

Creates a String representation of the double[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (byte[] array)

Since: API Level 1

Creates a String representation of the byte[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (float[] array)

Since: API Level 1

Creates a String representation of the float[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (short[] array)

Since: API Level 1

Creates a String representation of the short[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (long[] array)

Since: API Level 1

Creates a String representation of the long[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (int[] array)

Since: API Level 1

Creates a String representation of the int[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (char[] array)

Since: API Level 1

Creates a String representation of the char[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.

public static String toString (Object[] array)

Since: API Level 1

Creates a String representation of the Object[] passed. The result is surrounded by brackets ("[]"), each element is converted to a String via the 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.