extension : Java Glossary

extension: In windows, the characters after the dot in a filename give you a clue what the file contains: e.g. something.html contains HTML, *.txt is simple text, *.exe is an executable, *.java is Java source. Each of these extension is associated with a MIME type which is a long winded way of saying the same thing. You can associate given extensions with certain apps so that when you double click a file the corresponding program that knows how to deal with that file type is automatically launched with that file.
File offers no built-in way to get the extension or the filename without extension. Here is how you do it:

associations
associations project
file-extensions.org: database of file extensions and MIME types
fileinfo.net: database of file extensions
Filext.com: database of file extensions, MIME types, and identifying signatures
making jar files executable
MIME
sharpened.net: database of file extensions

	You can get the freshest copy of this page from:	or possibly from your local J: drive (Java virtual drive/mindprod.com website mirror)
	http://mindprod.com/jgloss/extension.html	J:\mindprod\jgloss\extension.html
	Please email your feedback for publication, errors, omissions, typos, formatting errors, ambiguities, unclear wording, broken/redirected link reports, suggestions to improve this page or comments to Roedy Green :
	Canadian Mind Products
	mindprod.com IP:[65.110.21.43]
view Blog	Your face IP:[38.107.191.103]
Feedback	You are visitor number 9,274.