Package com.yahoo.collections

Class IntArrayComparator

java.lang.Object

com.yahoo.collections.IntArrayComparator

public class IntArrayComparator
extends Object

Utility class which is useful when implementing Comparable and one needs to compare int arrays as instance variables.

Author:

Einar M R Rosenvinge

Constructor Summary

Constructors

Constructor	Description
IntArrayComparator()

Method Summary

Modifier and Type	Method	Description
static int	compare(int[] first, int[] second)	Compare the arguments.

Methods inherited from class java.lang.Object

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

Constructor Details

IntArrayComparator

public IntArrayComparator()

Method Details

compare

public static int compare(int[] first,
 int[] second)

Compare the arguments. Shorter arrays are always considered smaller than longer arrays. For arrays of equal lengths, the elements are compared one-by-one. Whenever two corresponding elements in the two arrays are non-equal, the method returns. If all elements at corresponding positions in the two arrays are equal, the arrays are considered equal.

Parameters:

first - an int array to be compared

second - an int array to be compared

Returns:

0 if the arguments are equal, -1 if the first argument is smaller, 1 if the second argument is smaller

Throws:

NullPointerException - if any of the arguments are null