Timer in a program, and Deleting a file

I need to set my program to check for files in a directory every 2 seconds and if something is there then I will process it otherwise wait.  This program will basically run forever (or until the computer crashes).

I also need to know how to delete a file in Java.  I am very new so forgive me for asking trivial questions.
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aozarovCommented:
Look at java.util.Timer
and new File("path_to_file").delete(); // to delete a file
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imladrisCommented:
How about something relatively simple like:


String dfile[];
File dirc=new File(dirname);
while(/* continuecondition */)
{   Thread.sleep(2000);           // delay for 2 seconds
     dfile=dirc.list();                  // get list of files in directory "dirname"
     for(int i=0; i<dfile.length; ++i)
     {   if( /* dfile[i] needs processing */)
         {   // process file
         }
     }
}

This while loop waits for 2 seconds, gets a list of the files in the directory sepcified for dirc, then checks each one to see if it needs to be processed or not.
Some files returned may not actually need to be processed such as "." and "..".
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imladrisCommented:
So, for /* continuecondition */ you would need to fill in some details.
The while condition controls how long the program runs. You may want to run it for some fixed amount of time (10 hours) or until it receives some signal to stop.
For /* dfile[i] needs processing */ you would presumably fill in some condition based on the file name.

Oh, and to delete a file you can also use a File object:

File df=new File(filename);
df.delete();
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