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How do I get a listing of the files in a directory?

Created May 4, 2012

John Zukowski

Create a java.io.File for the directory, then ask for the list of files with one of the following: 

public java.lang.String[] list();
public java.lang.String[] list(java.io.FilenameFilter);
public java.io.File[] listFiles();
public java.io.File[] listFiles(java.io.FilenameFilter);
public java.io.File[] listFiles(java.io.FileFilter);
The first two return the filenames as strings (for that directory), the latter three return actual File objects.

Also, see Re: how do i search a file from a folder that is in the server side using servlet for another method that lists files in a directory.