UploadFileFilter.java

package DisplayGUI;
import java.io.*;
import java.util.regex.*;

public class UploadFileFilter implements FileFilter {

     public boolean accept(File filename) {

     Pattern fpattern1 = Pattern.compile("a\\d+\\.upl");

     String fname = filename.getName();

     Matcher matcher1 = fpattern1.matcher(fname);
     return matcher1.matches();

     }
}

     

---