If I have a file like /path/to/file/foo.txt, I want to get only .txt, how can I do it? Is there a related method?
If you look at Apache Commons IO, you'll find a class called FilenameUtils. If you use the getExtension method, You can obtain extensions. String ext = FilenameUtils.getExtension("/path/to/file/foo.txt");
String ext = FilenameUtils.getExtension("/path/to/file/foo.txt");
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