creating dir name with current date and time

One <very> simple way to do this is just to use the System.currentTimeMillis() method - this method returns the number of milliseconds since 1972... you could put this on the end of the filename.   This will only be accurate to the millisecond (so if you have > 1 file generated per ms, you may have a problem).

If you really want to use the date scheme you outlined above, you can do this with the SimpleDateFormat class, for example :

         SimpleDateFormat sdf = new SimpleDateFormat("MM_dd_yyyy_HH_mm_ss");
         System.out.println("date = [" + sdf.format(new Date()) + "]");

The output would be :

         date = [10_07_2004_17_54_35]

But beware - this strategy is only unique to the second... you could modify the above example to include milliseconds to, in the following way:

      SimpleDateFormat sdf = new SimpleDateFormat("MM_dd_yyyy_HH_mm_ss_SSS");
      System.out.println("date = [" + sdf.format(new Date()) + "]");

Then you'll end up with :

      date = [10_07_2004_17_57_04_328]

This will do the job..

import java.io.File;
import java.util.Date;


public class temp {
      public static void main(String args[]) {
            Date dt = new Date();
            String t = "file_"+dt.getDate()+"_"+dt.getMonth()+"_"+dt.getYear()+"_"+dt.getHours()+"_"+dt.getMinutes();
            File tempFile=new File(t);
           if(tempFile.mkdir()) {
                 System.out.println("Directory Created");
           }
            
            
      }

}

:-)

Yaa it is I just kept it like that........

If both above codes are mixed its done right.....

Anyway sorry for the depricated method answer
:-)

i applied the following to my program...

String t = "file_"+dt.getDate()+"_"+dt.getMonth()+"_"+dt.getYear()+"_"+dt.getHours()+"_"+dt.getMinutes();

and got the following..
file_8_9_104_0_7

month and year seem to be wrong.