How do i delete Older files from the directory before create a new file?

Question

Hi,
How do i delete older files in a particular directory,
the senorio is count the number of .txt files in a directory and delete the older files if file count is more than 10. (if i add 11th file the very first file has to be deleted)
i have written the code to count the files and delete , but it is deleting all the files instead of older file
public class ExtensionFilter implements FilenameFilter {
  private String extension;
  public ExtensionFilter( String extension ) {
    this.extension = extension;            
  public boolean accept(File dir, String name) {
    return (name.endsWith(extension));
public class FileUtils{
  public static void main(String args[]) throws Exception {
    FileUtils.deleteFiles("c:/countfile/", ".txt");
  public static void deleteFiles( String directory, String extension ) {
    ExtensionFilter filter = new ExtensionFilter(extension);
    File dir = new File(directory);
    String[] list = dir.list(filter);
    File file;
    if (list.length == 0) return;
    for (int i = 0; i < list.length; i++) {
      //file = new File(directory + list);
file = new File(directory, list[i]);
if ((list[i]).length()>=10)
     System.out.print(file + " deleted : " + file.delete());
Thanks,
Jamin Rosina                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

What your code is doing now, is deleting all filenames that are longer than 10 characters.
Your problem lies in the line:
if ((list).length()>=10)