DefaultFileComparator (Commons IO 2.4)

java.lang.Object
- org.apache.commons.io.comparator.AbstractFileComparator
- - org.apache.commons.io.comparator.DefaultFileComparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<java.io.File>
```
public class DefaultFileComparator
extends AbstractFileComparator
implements java.io.Serializable
```
Compare two files using the default File.compareTo(File) method.
This comparator can be used to sort lists or arrays of files by using the default file comparison.
Example of sorting a list of files using the DEFAULT_COMPARATOR singleton instance:
```
       List<File> list = ...
       DefaultFileComparator.DEFAULT_COMPARATOR.sort(list);
 
```
Example of doing a reverse sort of an array of files using the DEFAULT_REVERSE singleton instance:
```
       File[] array = ...
       DefaultFileComparator.DEFAULT_REVERSE.sort(array);
 
```
Since:

1.4

Version:

$Id: DefaultFileComparator.java 1304052 2012-03-22 20:55:29Z ggregory $

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static java.util.Comparator<java.io.File>`	`DEFAULT_COMPARATOR`	Singleton default comparator instance
`static java.util.Comparator<java.io.File>`	`DEFAULT_REVERSE`	Singleton reverse default comparator instance

Constructor Summary

Constructors
Constructor Description

DefaultFileComparator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compare(java.io.File file1, java.io.File file2)`	Compare the two files using the `File.compareTo(File)` method.

Methods inherited from class org.apache.commons.io.comparator.AbstractFileComparator
sort, sort, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

- Field Detail
  - DEFAULT_COMPARATOR
```
public static final java.util.Comparator<java.io.File> DEFAULT_COMPARATOR
```
    Singleton default comparator instance
  - DEFAULT_REVERSE
```
public static final java.util.Comparator<java.io.File> DEFAULT_REVERSE
```
    Singleton reverse default comparator instance
- Constructor Detail
  - DefaultFileComparator
```
public DefaultFileComparator()
```
- Method Detail
  - compare
```
public int compare(java.io.File file1,
                   java.io.File file2)
```
    Compare the two files using the File.compareTo(File) method.
    
    Specified by:
    
    compare in interface java.util.Comparator<java.io.File>
    
    Parameters:
    
    file1 - The first file to compare
    
    file2 - The second file to compare
    
    Returns:
    
    the result of calling file1's File.compareTo(File) with file2 as the parameter.