Debug.Random

java.lang.Object
- java.util.Random
- - weka.core.Debug.Random

All Implemented Interfaces:

java.io.Serializable, RevisionHandler

Enclosing class:

Debug
```
public static class Debug.Random
extends java.util.Random
implements java.io.Serializable, RevisionHandler
```
This extended Random class enables one to print the generated random numbers etc., before they are returned. It can either use stdout (default) for outputting the logging information or a Log object (level is then INFO).

Version:

$Revision: 8034 $

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description
`Random()` Creates a new random number generator.
`Random(boolean debug)` Creates a new random number generator.
`Random(long seed)` Creates a new random number generator using a single long seed.
`Random(long seed, boolean debug)` Creates a new random number generator using a single long seed.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`getDebug()` returns whether to print the generated random values or not
`long`	`getID()` returns the unique ID of this number generator
`Debug.Log`	`getLog()` the currently used log, if null then stdout is used for outputting the debugging information
`java.lang.String`	`getRevision()` Returns the revision string.
`boolean`	`nextBoolean()` Returns the next pseudorandom, uniformly distributed boolean value from this random number generator's sequence.
`void`	`nextBytes(byte[] bytes)` Generates random bytes and places them into a user-supplied byte array.
`double`	`nextDouble()` Returns the next pseudorandom, uniformly distributed double value between 0.0 and 1.0 from this random number generator's sequence.
`float`	`nextFloat()` Returns the next pseudorandom, uniformly distributed float value between 0.0 and 1.0 from this random number generator's sequence.
`double`	`nextGaussian()` Returns the next pseudorandom, Gaussian ("normally") distributed double value with mean 0.0 and standard deviation 1.0 from this random number generator's sequence.
`int`	`nextInt()` Returns the next pseudorandom, uniformly distributed int value from this random number generator's sequence.
`int`	`nextInt(int n)` Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
`long`	`nextLong()` Returns the next pseudorandom, uniformly distributed long value from this random number generator's sequence.
`void`	`printStackTrace()` prints the current stacktrace
`void`	`setDebug(boolean value)` sets whether to print the generated random values or not
`void`	`setLog(Debug.Log value)` the log to use, if it is null then stdout is used
`void`	`setSeed(long seed)` Sets the seed of this random number generator using a single long seed.
`java.lang.String`	`toString()` returns a string representation of this number generator

Methods inherited from class java.util.Random
doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Random
```
public Random()
```
    Creates a new random number generator. With no debugging.
  - Random
```
public Random(long seed)
```
    Creates a new random number generator using a single long seed. With no debugging
    
    Parameters:
    
    seed - the seed value
  - Random
```
public Random(boolean debug)
```
    Creates a new random number generator. With optional debugging.
    
    Parameters:
    
    debug - if true, debugging output is enabled
  - Random
```
public Random(long seed,
              boolean debug)
```
    Creates a new random number generator using a single long seed. With optional debugging
    
    Parameters:
    
    seed - the seed value
    
    debug - if true, debugging output is enabled
- Method Detail
  - setDebug
```
public void setDebug(boolean value)
```
    sets whether to print the generated random values or not
    
    Parameters:
    
    value - if true debugging output is enabled
  - getDebug
```
public boolean getDebug()
```
    returns whether to print the generated random values or not
    
    Returns:
    
    true if debugging output is enabled
  - setLog
```
public void setLog(Debug.Log value)
```
    the log to use, if it is null then stdout is used
    
    Parameters:
    
    value - the log to use
  - getLog
```
public Debug.Log getLog()
```
    the currently used log, if null then stdout is used for outputting the debugging information
    
    Returns:
    
    the log, can be null
  - getID
```
public long getID()
```
    returns the unique ID of this number generator
    
    Returns:
    
    the unique ID of this number generator
  - printStackTrace
```
public void printStackTrace()
```
    prints the current stacktrace
  - nextBoolean
```
public boolean nextBoolean()
```
    Returns the next pseudorandom, uniformly distributed boolean value from this random number generator's sequence.
    
    Overrides:
    
    nextBoolean in class java.util.Random
    
    Returns:
    
    random boolean
  - nextBytes
```
public void nextBytes(byte[] bytes)
```
    Generates random bytes and places them into a user-supplied byte array.
    
    Overrides:
    
    nextBytes in class java.util.Random
    
    Parameters:
    
    bytes - array to fill with random bytes
  - nextDouble
```
public double nextDouble()
```
    Returns the next pseudorandom, uniformly distributed double value between 0.0 and 1.0 from this random number generator's sequence.
    
    Overrides:
    
    nextDouble in class java.util.Random
    
    Returns:
    
    random double
  - nextFloat
```
public float nextFloat()
```
    Returns the next pseudorandom, uniformly distributed float value between 0.0 and 1.0 from this random number generator's sequence.
    
    Overrides:
    
    nextFloat in class java.util.Random
    
    Returns:
    
    random float
  - nextGaussian
```
public double nextGaussian()
```
    Returns the next pseudorandom, Gaussian ("normally") distributed double value with mean 0.0 and standard deviation 1.0 from this random number generator's sequence.
    
    Overrides:
    
    nextGaussian in class java.util.Random
    
    Returns:
    
    random double, gaussian distributed
  - nextInt
```
public int nextInt()
```
    Returns the next pseudorandom, uniformly distributed int value from this random number generator's sequence.
    
    Overrides:
    
    nextInt in class java.util.Random
    
    Returns:
    
    random int
  - nextInt
```
public int nextInt(int n)
```
    Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
    
    Overrides:
    
    nextInt in class java.util.Random
    
    Parameters:
    
    n - the upper limit (exclusive)
    
    Returns:
    
    random int
  - nextLong
```
public long nextLong()
```
    Returns the next pseudorandom, uniformly distributed long value from this random number generator's sequence.
    
    Overrides:
    
    nextLong in class java.util.Random
    
    Returns:
    
    random long
  - setSeed
```
public void setSeed(long seed)
```
    Sets the seed of this random number generator using a single long seed.
    
    Overrides:
    
    setSeed in class java.util.Random
    
    Parameters:
    
    seed - the seed value
  - toString
```
public java.lang.String toString()
```
    returns a string representation of this number generator
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    a string representation
  - getRevision
```
public java.lang.String getRevision()
```
    Returns the revision string.
    
    Specified by:
    
    getRevision in interface RevisionHandler
    
    Returns:
    
    the revision

Class Debug.Random

Constructor Summary

Method Summary

Methods inherited from class java.util.Random

Methods inherited from class java.lang.Object

Constructor Detail

Random

Random

Random

Random

Method Detail

setDebug

getDebug

setLog

getLog

getID

printStackTrace

nextBoolean

nextBytes

nextDouble

nextFloat

nextGaussian

nextInt

nextInt

nextLong

setSeed

toString

getRevision