Filters files based on the extension (what the filename ends with) : FileFilter « File « Java Tutorial






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import java.io.File;
import java.io.FilenameFilter;

/**
 * This filters files based on the extension (what the filename
 * ends with). This is used in retrieving all the files of a
 * particular type.
 *
 * Eg., to retrieve and print all <code>*.java</code> files in the current directory:
 *
 * <pre>
 * File dir = new File(".");
 * String[] files = dir.list( new ExtensionFileFilter( new String[]{"java"} ) );
 * for (int i=0; i&lt;files.length; i++)
 * {
 *     System.out.println(files[i]);
 * }
 * </pre>
 *
 * @author  Federico Barbieri <fede@apache.org>
 * @author Serge Knystautas <sergek@lokitech.com>
 * @author Peter Donald
 * @version CVS $Revision: 494012 $ $Date: 2007-01-08 11:23:58 +0100 (Mo, 08 Jan 2007) $
 * @since 4.0
 */
public class ExtensionFileFilter
    implements FilenameFilter
{
    private String[] m_extensions;

    public ExtensionFileFilter( final String[] extensions )
    {
        m_extensions = extensions;
    }

    public ExtensionFileFilter( final String extension )
    {
        m_extensions = new String[]{extension};
    }

    public boolean accept( final File file, final String name )
    {
        for( int i = 0; i < m_extensions.length; i++ )
        {
            if( name.endsWith( m_extensions[ i ] ) )
            {
                return true;
            }
        }
        return false;
    }
}








11.72.FileFilter
11.72.1.Create custom File filter
11.72.2.List file with file filter
11.72.3.Custom File Filter
11.72.4.Filter by file
11.72.5.This filter accepts Files that are directories
11.72.6.Filters files based on the extension (what the filename ends with)
11.72.7.Inverted File Filter
11.72.8.Files filter that filters files by their suffix (or extension)
11.72.9.Generic File Filter
11.72.10.A suffix based file filter.