Package com.softsynth.jmsl.util

Class HailstoneSequence

java.lang.Object
com.softsynth.jmsl.util.HailstoneSequence
All Implemented Interfaces:
SequenceGenerator
public class HailstoneSequence
extends java.lang.Object
implements SequenceGenerator
Generate "Hailstone Sequence" based on an article in Scientific American FIXME - find reference.
If the previous value is odd, then n= p*3 - 5;
If the previous value is even, then n= p/2 + 1;
Author:
Phil Burk and Nick Didkovsky

  • Constructor Summary

    Constructors
    Constructor Description
    HailstoneSequence()  

  • Method Summary

    Modifier and Type Method Description
    int getNext()  
    int getOffset()  
    int getSeed()  
    int next()
    Return next value in sequence, then generate new value.
    void randomize()
    Set seed from system time.
    void reset()
    Reset sequence generator so that it will restart at beginning.
    void setNext​(int next)
    Set next value in sequence.
    void setOffset​(int offset)  
    void setSeed​(int seed)
    Set sequence seed.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • HailstoneSequence

      public HailstoneSequence()

  • Method Details

    • next

      public int next()
      Return next value in sequence, then generate new value.
      Specified by:
      next in interface SequenceGenerator

    • getNext

      public int getNext()
      Specified by:
      getNext in interface SequenceGenerator
      Returns:
      next value in sequence.

    • setNext

      public void setNext​(int next)
      Set next value in sequence.
      Specified by:
      setNext in interface SequenceGenerator

    • randomize

      public void randomize()
      Set seed from system time. This will result in a unique sequence each time it is called.
      Specified by:
      randomize in interface SequenceGenerator

    • setSeed

      public void setSeed​(int seed)
      Set sequence seed. Following call to next() will return this number.
      Specified by:
      setSeed in interface SequenceGenerator

    • getSeed

      public int getSeed()
      Specified by:
      getSeed in interface SequenceGenerator
      Returns:
      seed set by setSeed.

    • reset

      public void reset()
      Reset sequence generator so that it will restart at beginning.
      Specified by:
      reset in interface SequenceGenerator

    • getOffset

      public int getOffset()
      Returns:
      offset set by setOffset.

    • setOffset

      public void setOffset​(int offset)