Java Directory list content using SimpleFileVisitor

import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;

class ClassFileRemover extends SimpleFileVisitor<Path> {
   public FileVisitResult visitFile(Path file, BasicFileAttributes attr) throws IOException {
      if (file.toString().endsWith(".class")) {
         Files.delete(file);//w ww  .  ja v  a2  s  .  c  o m
      }
      return FileVisitResult.CONTINUE;
   }
}

public class Main {
   public static void main(String args[]) throws IOException {
      Files.walkFileTree(Paths.get("f:"), new ClassFileRemover());
   }
}