Package org.plumelib.util

Class ArraysPlume.IntArrayComparatorLexical

java.lang.Object

org.plumelib.util.ArraysPlume.IntArrayComparatorLexical

All Implemented Interfaces:

Serializable, Comparator<int[]>

Enclosing class:

ArraysPlume

public static final class ArraysPlume.IntArrayComparatorLexical
extends Object
implements Comparator<int[]>, Serializable

Compare two arrays lexically (element-by-element). If all shared elements are the same, but the lengths differ, then the shorter array is considered less.

Note: this comparator imposes orderings that are inconsistent with Object.equals(java.lang.Object). That is, it may return 0 if the arrays contain identical numbers but are not equal according to equals() (which tests reference equality).

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final ArraysPlume.IntArrayComparatorLexical	it	The canonical IntArrayComparatorLexical.

Constructor Summary

Constructors

Constructor	Description
IntArrayComparatorLexical()	Deprecated. use it.

Method Summary

Modifier and Type	Method	Description
int	compare(int[] a1, int[] a2)	Compare two arrays lexically (element-by-element).

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

Field Details

it

public static final ArraysPlume.IntArrayComparatorLexical it

The canonical IntArrayComparatorLexical.

Constructor Details

IntArrayComparatorLexical

@Deprecated
public IntArrayComparatorLexical()

Deprecated.

use it.

Create a new IntArrayComparatorLexical.

Method Details

compare

@Pure
public int compare(int[] a1,
 int[] a2)

Compare two arrays lexically (element-by-element).

Specified by:

compare in interface Comparator<int[]>

Parameters:

a1 - first array to compare

a2 - second array to compare

Returns:

a negative integer, zero, or a positive integer, depending on whether the first argument is less than, equal to, or greater than the second argument