taskspaces.rna
Class Shuffler

java.lang.Object
  |
  +--taskspaces.rna.Shuffler

All Implemented Interfaces:

java.io.Serializable

public class Shuffler

extends java.lang.Object

implements java.io.Serializable

Encapsulates a method to shuffle a string using the Yates-Fischer method and a method to randomize an array of integers.

Version:

1.00

Author:

Rob Markel

See Also:

Serialized Form

Constructor Summary

Shuffler()

Method Summary

static int[]	shuffleInts(int[] intArray) Randomly shuffles an integer array.
static java.lang.String	shuffleString(java.lang.String s, int offset, int numToShuffle) Randomly shuffles a String using the Yates-Fischer method.

Methods inherited from class java.lang.Object

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

Constructor Detail

Shuffler

public Shuffler()

Method Detail

shuffleString

public static java.lang.String shuffleString(java.lang.String s,
                                             int offset,
                                             int numToShuffle)
                                      throws java.lang.Exception

Randomly shuffles a String using the Yates-Fischer method.

Parameters:

s - String to be shuffled.

offset - index in String to begin shuffling.

numToShuffle - number of characters following offset to shuffle.

Returns:

the shuffled String.

shuffleInts

public static int[] shuffleInts(int[] intArray)

Randomly shuffles an integer array.

Parameters:

integers - the array to shuffle.

Returns:

the shuffled array.