keel.Algorithms.Instance_Generation.utilities

Class RandomGenerator

java.lang.Object

org.core.Randomize

keel.Algorithms.Instance_Generation.utilities.RandomGenerator

public class RandomGenerator
extends Randomize

Random Number Generator class to be used in the package Prototype_Generation.

Author:

diegoj

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.Random	random Object random used int the number generators
protected static long	seed Seed value.

Constructor Summary

Constructors

Constructor and Description
RandomGenerator()

Method Summary

Modifier and Type	Method and Description
static java.util.ArrayList<java.lang.Integer>	generateDifferentRandomIntegers(int min, int max) Generate a random sequence of integer between the bounds.
static java.util.ArrayList<java.lang.Integer>	generateDifferentRandomIntegers(int min, int max, int number) Generate a random sequence of integer between the bounds.
static java.util.ArrayList<java.lang.Integer>	generateDifferentRandomIntegersWithStep(int min, int max, int inc) Generate a random sequence of integer between the bounds.
static java.util.ArrayList<java.lang.Double>	generateDifferentRandomNumbers(double min, double max) Generate a random sequence of double values between the bounds.
static java.util.ArrayList<java.lang.Double>	generateDifferentRandomNumbers(double min, double max, int number) Generate a random sequence of double values between the bounds.
static java.util.ArrayList<java.lang.Double>	generateDifferentRandomNumbersWithStep(double min, double max, double inc) Generate a random sequence of double values between the bounds.
static <T> T	randomSelector(T a, T b) Select by random method between two objects
static void	setSeed(long s) Set the seed of the random method.

Methods inherited from class org.core.Randomize

Rand, RandClosed, Randdouble, RanddoubleClosed, RanddoubleOpen, RandGaussian, Randint, RandintClosed, RandintOpen, RandOpen

Methods inherited from class java.lang.Object

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

Field Detail

random

protected static java.util.Random random

Object random used int the number generators

seed

protected static long seed

Seed value.

Constructor Detail

RandomGenerator

public RandomGenerator()

Method Detail

setSeed

public static void setSeed(long s)

Set the seed of the random method.

Parameters:

s - Seed of the random method.

generateDifferentRandomIntegersWithStep

public static java.util.ArrayList<java.lang.Integer> generateDifferentRandomIntegersWithStep(int min,
                                                                                             int max,
                                                                                             int inc)

Generate a random sequence of integer between the bounds. Step between elements is specified.

Parameters:

min - Lower bound.

max - Upper bound.

inc - Increment of the elements of the interval.

Returns:

Random list of integers in [min, max].

generateDifferentRandomIntegers

public static java.util.ArrayList<java.lang.Integer> generateDifferentRandomIntegers(int min,
                                                                                     int max)

Generate a random sequence of integer between the bounds. Step between elements is 1.

Parameters:

min - Lower bound.

max - Upper bound.

Returns:

Random list of integers in [min, max].

generateDifferentRandomIntegers

public static java.util.ArrayList<java.lang.Integer> generateDifferentRandomIntegers(int min,
                                                                                     int max,
                                                                                     int number)

Generate a random sequence of integer between the bounds. Step between elements is 1.

Parameters:

min - Lower bound.

max - Upper bound.

number - Number of elements.

Returns:

Random list of integers in [min, max].

generateDifferentRandomNumbersWithStep

public static java.util.ArrayList<java.lang.Double> generateDifferentRandomNumbersWithStep(double min,
                                                                                           double max,
                                                                                           double inc)

Generate a random sequence of double values between the bounds. Step between elements is specified.

Parameters:

min - Lower bound.

max - Upper bound.

inc - Increment of the elements of the interval.

Returns:

Random list of numbers in [min, max].

generateDifferentRandomNumbers

public static java.util.ArrayList<java.lang.Double> generateDifferentRandomNumbers(double min,
                                                                                   double max)

Generate a random sequence of double values between the bounds. Step between elements is 1.0.

Parameters:

min - Lower bound.

max - Upper bound.

Returns:

Random list of numbers in [min, max].

generateDifferentRandomNumbers

public static java.util.ArrayList<java.lang.Double> generateDifferentRandomNumbers(double min,
                                                                                   double max,
                                                                                   int number)

Generate a random sequence of double values between the bounds. Step between elements is 1.0.

Parameters:

min - Lower bound.

max - Upper bound.

number - Number of elements generated.

Returns:

Random list of numbers in [min, max].

randomSelector

public static <T> T randomSelector(T a,
                                   T b)

Select by random method between two objects

Type Parameters:

T - Type of the objects given

Parameters:

a - One object.

b - Other object.

Returns:

the object a or b.