it.riccardotraverso.java.util

Class ArraysUtils

java.lang.Object

it.riccardotraverso.java.util.ArraysUtils

public class ArraysUtils
extends java.lang.Object

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	contains(boolean[] arr, boolean obj)
static boolean	contains(byte[] arr, byte obj)
static boolean	contains(char[] arr, char obj)
static boolean	contains(double[] arr, double obj)
static boolean	contains(float[] arr, float obj)
static boolean	contains(int[] arr, int obj)
static boolean	contains(long[] arr, long obj)
static boolean	contains(short[] arr, short obj)
static <T> boolean	contains(T[] arr, T obj) Tells whether an element is present in an array.
static int	find(boolean[] arr, boolean b)
static int	find(byte[] arr, byte b)
static int	find(char[] arr, char c)
static int	find(double[] arr, double d)
static int	find(float[] arr, float f)
static int	find(int[] arr, int i)
static int	find(long[] arr, long l)
static int	find(short[] arr, short s)
static <T> int	find(T[] arr, T obj) Searches for an element in an array, returning its index if present.
static char[]	replicate(int n, char c) Generates a string composed of just n consecutive occurrences of char c.

Methods inherited from class java.lang.Object

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

Method Detail

replicate

public static char[] replicate(int n,
               char c)

Generates a string composed of just n consecutive occurrences of char c.

Parameters:

n -

c -

find

public static <T> int find(T[] arr,
           T obj)

Searches for an element in an array, returning its index if present. The objects in the array are first compared by reference with the given object, and then by means of the equals() method.

Parameters:

arr - the array to search in

obj - the object to search for in the given array

Returns:

the index of the given object in the array if it is present, or -1 otherwise

find

public static int find(byte[] arr,
       byte b)

See Also:

find(Object[], Object)

find

public static int find(short[] arr,
       short s)

See Also:

find(Object[], Object)

find

public static int find(boolean[] arr,
       boolean b)

See Also:

find(Object[], Object)

find

public static int find(char[] arr,
       char c)

See Also:

find(Object[], Object)

find

public static int find(int[] arr,
       int i)

See Also:

find(Object[], Object)

find

public static int find(long[] arr,
       long l)

See Also:

find(Object[], Object)

find

public static int find(float[] arr,
       float f)

See Also:

find(Object[], Object)

find

public static int find(double[] arr,
       double d)

See Also:

find(Object[], Object)

contains

public static <T> boolean contains(T[] arr,
                   T obj)

Tells whether an element is present in an array. The objects in the array are first compared by reference with the given object, and then by means of the equals() method.

Parameters:

arr - the array to search in

obj - the object to search for in the given array

Returns:

true iff the object is present in the given array

contains

public static boolean contains(byte[] arr,
               byte obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(short[] arr,
               short obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(boolean[] arr,
               boolean obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(char[] arr,
               char obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(int[] arr,
               int obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(long[] arr,
               long obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(float[] arr,
               float obj)

See Also:

contains(Object[], Object)

contains

public static boolean contains(double[] arr,
               double obj)

See Also:

contains(Object[], Object)