Class AlphanumComparator

java.lang.Object

de.gurkenlabs.litiengine.util.AlphanumComparator

All Implemented Interfaces:

Comparator<String>

public class AlphanumComparator
extends Object
implements Comparator<String>

This is an updated version with enhancements made by Daniel Migowski, Andre Bogus, and David Koelle. Updated by David Koelle in 2017.

To use this class: Use the static "sort" method from the java.util.Collections class: Collections.sort(your list, new AlphanumComparator());

Constructor Summary

Constructors

Constructor	Description
AlphanumComparator()

Method Summary

Modifier and Type	Method	Description
int	compare(String s1, String s2)	Compares two strings using the Alphanum algorithm.
static int	compareTo(String s1, String s2)	Compares two strings using the Alphanum algorithm.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

AlphanumComparator

public AlphanumComparator()

Method Details

compare

public int compare(String s1,
 String s2)

Compares two strings using the Alphanum algorithm. This method compares two strings by breaking them into chunks of numeric and non-numeric characters and comparing these chunks numerically and lexicographically.

Specified by:

compare in interface Comparator<String>

Parameters:

s1 - the first string to compare

s2 - the second string to compare

Returns:

a negative integer, zero, or a positive integer as the first string is less than, equal to, or greater than the second string

compareTo

public static int compareTo(String s1,
 String s2)

Compares two strings using the Alphanum algorithm. This method compares two strings by breaking them into chunks of numeric and non-numeric characters and comparing these chunks numerically and lexicographically.

Parameters:

s1 - the first string to compare

s2 - the second string to compare

Returns:

a negative integer, zero, or a positive integer as the first string is less than, equal to, or greater than the second string