Filetypes
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Here are the most commonly-used filetypes (a.k.a. file extensions) when dealing with Java:

Filetype Description
.java Java source file
.class bytecode file ("class" file)
.zip ZIP files containing .class (and other) files (do not UNZIP!)
.jar Java Archive files containing .class (and other) files (do not unjar!)
Note: Remember:
  • Long filenames/filetypes are required!
  • Java is case-sensitive, including filenames!
 

This page was last modified on 02 October, 2007