UnKnown File Compiler Error?

Question

I keep receiving the same error from my 1.4.2 java sdk, could anyone explain this compiler error?
Thanks
WavFiles.java:17: cannot resolve symbol
symbol : method list (java.io.FileFilter)
location: class java.io.File
wavList = dir.list(filter);
^
1 error
import java.io.*;
import java.io.FileFilter;
public class WavFiles{
String[] wavList = null;
WavFiles(){
File dir = new File(".");
FilenameFilter filter = new FilenameFilter(){
public boolean accept(File file, String name){
return name.toLowerCase().endsWith(".wav");
wavList = dir.list(filter);
}

Answer 1

the file class doesn�t have a method called list that akes a filefilter as a parameter.
instead there are a list method that takes a filenamefilter and a listfiles method that accepts a filefilter.
http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html