info.jonclark.util
Class ArrayUtils

java.lang.Object
  info.jonclark.util.ArrayUtils

public class ArrayUtils
extends Object

Utilities for working with arrays

Constructor Summary

ArrayUtils()

Method Summary

static <T> String	arrayToString(boolean[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> String	arrayToString(double[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> String	arrayToString(float[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> String	arrayToString(int[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> String	arrayToString(long[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> String	arrayToString(T[] arr) Convert an array into a string of the form {element1, element2, element3...
static <T> Vector<T>	arrayToVector(T[] arr) (Somewhat) efficiently convert an array into a vector (requires a full copy of the array to the vector).
static boolean	sortedArrayContains(int[] arr, int key) Find out if a sorted array contains a value
static boolean	unsortedArrayContains(int[] arr, int key) Find out if an unsorted array contains a value

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtils

public ArrayUtils()

Method Detail

arrayToString

public static <T> String arrayToString(T[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToString

public static <T> String arrayToString(int[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToString

public static <T> String arrayToString(long[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToString

public static <T> String arrayToString(float[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToString

public static <T> String arrayToString(double[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToString

public static <T> String arrayToString(boolean[] arr)

Convert an array into a string of the form {element1, element2, element3... }

Type Parameters:

T - The type of the array

Parameters:

arr - The array to be converted into string form

Returns:

A string representation of the array

arrayToVector

public static <T> Vector<T> arrayToVector(T[] arr)

(Somewhat) efficiently convert an array into a vector (requires a full copy of the array to the vector).

Parameters:

arr - The array to be converted into a vector

Returns:

A vector containing all the elements of arr

sortedArrayContains

public static boolean sortedArrayContains(int[] arr,
                                          int key)

Find out if a sorted array contains a value

Parameters:

arr - The array to be searched

key - The value to find in the array

Returns:

True if the value is found in the array

unsortedArrayContains

public static boolean unsortedArrayContains(int[] arr,
                                            int key)

Find out if an unsorted array contains a value

Parameters:

arr - The array to be searched

key - The value to find in the array

Returns:

True if the value is found in the array