de.alpharogroup.random.number

Class RandomPrimitivesExtensions

java.lang.Object

de.alpharogroup.random.number.RandomPrimitivesExtensions

public final class RandomPrimitivesExtensions
extends Object

Utility class for producing random privimitive types

Version:

1.1

Author:

Asterios Raptis

Constructor Summary

Constructors

Constructor and Description
RandomPrimitivesExtensions()

Method Summary

Modifier and Type	Method and Description
static int	getRandomIntBetween(int minVolume, int maxVolume) Returns a random int between the range from minVolume and maxVolume with the Math.abs method.
static boolean	randomBoolean() Returns a random boolean.
static byte	randomByte() The Method randomByte() selects a random byte.
static byte[]	randomByteArray(int length) The Method randomByteArray(int) generates a random byte array.
static char	randomChar() Returns a random char.
static char	randomChar(String string) The Method randomChar(String) selects a random char from the given String.
static double	randomDouble() The Method randomDouble() gets a random double
static double	randomDouble(double range) The Method randomDouble(double) gets an double to the spezified range.
static double	randomDoubleBetween(double start, double end) Gets the random double between the range from start and end.
static double	randomDoubleBetween(double start, double end, String pattern) Gets the random double between the range from start and end in the given pattern.
static float	randomFloat() Generates a random float between the range 0.0-9.9.
static float	randomFloat(float range) The Method randomFloat(float) gets an float to the spezified range.
static float	randomFloat(int afterComma, int beforeComma) The Method getRandomFloat(int,int) gets an random float.
static float	randomFloatBetween(float start, float end) Gets the random float between the range from start and end.
static float	randomFloatBetween(float start, float end, String pattern) Gets the random float between the range from start and end in the given pattern.
static int	randomInt() The Method randomInt() gets an int between the range 0-9.
static int	randomInt(int range) The Method randomInt(int) gets an int to the spezified range.
static int	randomIntBetween(int start, int end) Returns a random int between the range from start and end.
static int	randomIntBetween(int start, int end, boolean includeMin, boolean includeMax) Returns a random int between the range from start and end.
static long	randomLong() Gets a random long
static long	randomLong(long range) The Method randomLong(long) gets an long to the spezified range.
static long	randomLongBetween(long start, long end) Returns a random long between the range from start and end.
static short	randomShort() Returns a random short

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomPrimitivesExtensions

public RandomPrimitivesExtensions()

Method Detail

randomBoolean

public static boolean randomBoolean()

Returns a random boolean.

Returns:

The random boolean.

randomByte

public static byte randomByte()

The Method randomByte() selects a random byte.

Returns:

The random byte.

randomByteArray

public static byte[] randomByteArray(int length)

The Method randomByteArray(int) generates a random byte array.

Parameters:

length - the length.

Returns:

the byte[]

randomChar

public static char randomChar()

Returns a random char.

Returns:

The generated random char.

randomShort

public static short randomShort()

Returns a random short

Returns:

The generated random short

randomChar

public static char randomChar(String string)

The Method randomChar(String) selects a random char from the given String.

Parameters:

string - The String from who to select the char.

Returns:

The selected char.

randomLong

public static long randomLong()

Gets a random long

Returns:

a random long

randomLong

public static long randomLong(long range)

The Method randomLong(long) gets an long to the spezified range. For example: if you put range to 10 the random int is between 0-9.

Parameters:

range - the range

Returns:

an long not greater then the range.

randomLongBetween

public static long randomLongBetween(long start,
                                     long end)

Returns a random long between the range from start and end.

Parameters:

start - The long from where the range starts.

end - The long from where the range ends.

Returns:

A random long between the range from start and end.

randomFloat

public static float randomFloat()

Generates a random float between the range 0.0-9.9.

Returns:

the generated random float between the range 0.0-9.9.

randomDouble

public static double randomDouble(double range)

The Method randomDouble(double) gets an double to the spezified range. For example: if you put range to 10.0 the random int is between 0.0-9.9.

Parameters:

range - the range

Returns:

the double

randomDouble

public static double randomDouble()

The Method randomDouble() gets a random double

Returns:

the random double

randomDoubleBetween

public static double randomDoubleBetween(double start,
                                         double end)

Gets the random double between the range from start and end.

Parameters:

start - the start

end - the end

Returns:

the random double between

randomDoubleBetween

public static double randomDoubleBetween(double start,
                                         double end,
                                         String pattern)
                                  throws ParseException

Gets the random double between the range from start and end in the given pattern. Refer to class @see DecimalFormat.

Parameters:

start - the start

end - the end

pattern - the pattern

Returns:

the random double between

Throws:

ParseException - is thrown if the beginning of the specified string cannot be parsed

randomFloat

public static float randomFloat(float range)

The Method randomFloat(float) gets an float to the spezified range. For example: if you put range to 10.0 the random int is between 0.0-9.9.

Parameters:

range - the range

Returns:

the float

randomFloat

public static float randomFloat(int afterComma,
                                int beforeComma)

The Method getRandomFloat(int,int) gets an random float.

Parameters:

afterComma - How many decimal places after the comma.

beforeComma - How many decimal places before the comma.

Returns:

The produced float.

randomFloatBetween

public static float randomFloatBetween(float start,
                                       float end)

Gets the random float between the range from start and end.

Parameters:

start - the start

end - the end

Returns:

the random float between

randomFloatBetween

public static float randomFloatBetween(float start,
                                       float end,
                                       String pattern)
                                throws ParseException

Gets the random float between the range from start and end in the given pattern. Refer to class @see DecimalFormat.

Parameters:

start - the start

end - the end

pattern - the pattern

Returns:

the random float between

Throws:

ParseException - is thrown if the beginning of the specified string cannot be parsed

randomInt

public static int randomInt()

The Method randomInt() gets an int between the range 0-9.

Returns:

an int between the range 0-9.

randomInt

public static int randomInt(int range)

The Method randomInt(int) gets an int to the spezified range. For example: if you put range to 10 the random int is between 0-9.

Parameters:

range - The Range.

Returns:

an int not greater then the range.

randomIntBetween

public static int randomIntBetween(int start,
                                   int end)

Returns a random int between the range from start and end.

Parameters:

start - The int from where the range starts.

end - The int from where the range ends.

Returns:

A random int between the range from start and end.

randomIntBetween

public static int randomIntBetween(int start,
                                   int end,
                                   boolean includeMin,
                                   boolean includeMax)

Returns a random int between the range from start and end.

Parameters:

start - The int from where the range starts.

end - The int from where the range ends.

includeMin - if true than min value is included

includeMax - if true than max value is included

Returns:

A random int between the range from start and end.

getRandomIntBetween

public static int getRandomIntBetween(int minVolume,
                                      int maxVolume)

Returns a random int between the range from minVolume and maxVolume with the Math.abs method.

Parameters:

minVolume - the min volume

maxVolume - the max volume

Returns:

A random int between the range from minVolume and maxVolume