dirlist.java

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//: DirList.java
//  Displays directort 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 imformation:
	String f = new File(name).getName();
	return f.indexOf(afn) != -1;
	}
}