Java File Extension Name Extract getFileExtension(File file)

Description

get File Extension

License

Open Source License

Declaration

public static String getFileExtension(File file) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.io.File;

public class Main {
    private final static Pattern FileNamePattern = Pattern.compile("(?:-([0-9]*))?(?:\\.([^.]*))?$");

    public static String getFileExtension(File file) {
        String path = file.getPath();
        Matcher matcher = FileNamePattern.matcher(path);
        if (matcher.find()) {
            return matcher.group(2);
        }/*from   w  w  w. j a va  2  s. c  o m*/
        return null;
    }
}

Related

1. extractFileExtension(String filePath)
2. extractFileExtension(String path)
3. extractFileExtensionFromPath(String path)
4. getFileExtension(File f)
5. getFileExtension(File file)
6. getFileExtension(File file)
7. getFileExtension(File file)
8. getFileExtension(File file)
9. getFileExtension(File file)