Need time in 'sssss' format

Question

Hi,
I am developing a process which takes a file say a.txt as input and processes records in it and outputs 3 files say b.txt,c.txt,d.txt. To make them unique we had appended date in 'sssss' format to the file name expecting something like b_00321.txt and so on.
When I run the process i get the same time appended to all the 3 files such as b_00321.txt, c_00321.txt,d_00321.txt .
SimpleDateFormat dateFormat = new SimpleDateFormat("SSSSS");
strFlNm = "b_"+dateFormat.format(new Date());
Not sure why. Kindly help.

Answer 1

I second josah that if you're create the names within the same milisecond
you dont get unique numbers.
I also noticed the existence of System.nanoTime() and did a smal test :
for (int i = 0; i < 10; i++) {
        System.out.println( Long.toString(System.nanoTime() )//
             +", "//
             + Long.toString(new Date().getTime()));
     }the nanoTime() depends on the os you're using, and in my case (linux)
I did get better results with the nanoTime() method.
2269725905612, 1216492251292
2269727145831, 1216492251293
2269727293406, 1216492251293
2269727428011, 1216492251293
2269727561871, 1216492251294
2269727695714, 1216492251294
2269728641643, 1216492251295
2269728808089, 1216492251295
2269728958641, 1216492251295
2269729113271, 1216492251295
Edited by: bompie on 19-jul-2008 20:33