//: DirList3.java // Building the anonymous inner class "in-place" import java.io.*; public class DirList3 { public static void main(final String[] args) { try { File path = new File("."); String[] list; if( args.length == 0) list = path.list(); else list = path.list ( new FilenameFilter() { public boolean accept(File dir, String n) { String f = new File(n).getName(); return f.indexOf(args[0]) != -1; } } ); for( int i = 0; i < list.length; i++) System.out.println(list[i]); } catch( Exception e){ e.printStackTrace(); } } }