How to get the lastmodified time of an existing file?

hi,
there are some files sitting at server side, I want to monitor when the file is modified. could anyone show me some code for doing this?
Thanks!
Euncie

import java.io.*;
import java.util.Date;
class LastModifiedDemo{
     public static void main (String args[]){
          File f = new File("test.txt");
          System.out.println(new Date(f.lastModified()));
}well, you should not get zero, try this, you will get a date

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