public interface FilenameFilter { boolean accept(File dir, String name); }
//: DirList.java // Copyright (c) Bruce Eckel, 1998 // Displays directory listing import java.io.*; public class DirList { public static void main(String[] args) { try { File path = new File("."); String[] list; if(args.length == 0) list = path.list(); else list = path.list(new DirFilter(args[0])); for(int i = 0; i < list.length; i++) System.out.println(list[i]); } catch(Exception e) { e.printStackTrace(); } } } class DirFilter implements FilenameFilter { String afn; DirFilter(String afn) { this.afn = afn; } public boolean accept(File dir, String name) { // Strip path information: String f = new File(name).getName(); return f.indexOf(afn) != -1; } }