How to get Dynamic data file in SQL*Loader?

Hi all,
I have a requirement that needs to import data everyday using background process. I have created a control file with the fixed datafile name and calling it through java. It is working fine.
The thing is data file name is not constant, it changes everyday (I mean the file name format is YearMonthDate_Clients.cvs). But the the data file location is fixed location.
How can I get the data file name dynamically?
Can someone has the answer?
Thanks in advance,
Kalyogi

I'm not a JAVA developer, but I've used this before
File folder = new File("c:/");
    File[] listOfFiles = folder.listFiles();
    for (int i = 0; i < listOfFiles.length; i++) {
      if (listOfFiles.isFile()) {
--Here the filename is printed, but I'm sure you can pass this to whatever/however you are invoking SqlLdr
System.out.println("File " + listOfFiles[i].getName());

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