How do I get the content of a directory?

Category: java.io, viewed: 1529 time(s).
 
package org.kodejava.sample.java.io;
 
import java.io.File;
import java.io.FilenameFilter;
 
public class DirectoryContentExample
{
    public static void main(String[] args)
    {
        File games = new File("D:\\Games");
 
        // Get a list of file under the specified directory
        // above and return it as an abstract file object.
        File[] files = games.listFiles();
 
        // Iterates the content of games directory, print it
        // and check it whether it was a directory or a file.
        for (File file : files)
        {
            System.out.println(file + " is a " 
                    + (file.isDirectory() ? "directory" : "file"));
        }
 
        // Here we also get the list of file in the directory but
        // return it just as an array of String.
        String[] xfiles = games.list();
        for (String file : xfiles)
        {
            System.out.println("File = " + file);
        }
 
        // Now we want to list the file in the directory but
        // we just want a file with a .doc extension. To do
        // this we first create a FilenameFilter which will
        // be given to the listFiles() method to filter the
        // listing process. The rule of filtering is
        // implemented in the accept() method of the
        // FilenameFilter interface.
        FilenameFilter filter = new FilenameFilter()
        {
            public boolean accept(File dir, String name)
            {
                if (name.endsWith(".doc"))
                {
                    return true;
                }
                return false;
            }
        };
 
        // Give me just a .doc files in your directory.
        File[] yfiles = games.listFiles(filter);
        for (File doc : yfiles)
        {
            System.out.println("Doc file = " + doc);
        }
    }
}
 
 

Here is the result of the program:

The File[] array returned:

D:\Games\AOE is a directory
D:\Games\Championship Manager 2007 is a directory
D:\Games\GameHouse is a directory
D:\Games\Sierra is a directory
D:\Games\testing.doc is a file
D:\Games\TTD is a directory

The String[] array returned.

File = AOE
File = Championship Manager 2007
File = GameHouse
File = Sierra
File = testing.doc
File = TTD

The File[] array using FilenameFilter result.

Doc file = D:\Games\testing.doc
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