//: io/DirList.java

package io; /* Added by Eclipse.py */

// Display a directory listing using regular expressions.

// {Args: "D.*\.java"}

import java.util.regex.*;

import java.io.*;

import java.util.*;

public class DirList {

public static void main(String[] args) {

File path = new File(".");

String[] list;

if(args.length == 0)

list = path.list();

else

list = path.list(new DirFilter(args[0]));

Arrays.sort(list, String.CASE_INSENSITIVE_ORDER);

for(String dirItem : list)

System.out.println(dirItem);

}

}

class DirFilter implements FilenameFilter {

private Pattern pattern;

public DirFilter(String regex) {

pattern = Pattern.compile(regex);

}

public boolean accept(File dir, String name) {

return pattern.matcher(name).matches();

}

} /* Output:

DirectoryDemo.java

DirList.java

DirList2.java

DirList3.java

*///:~