Re: TimerTask not work as expected

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Mon, 17 Jan 2011 19:56:37 -0500

Message-ID:

<4d34e53e$0$23762$14726298@news.sunsite.dk>

On 12-01-2011 01:45, Travers Naran wrote:

On 11/01/2011 10:10 PM, SamuelXiao wrote:

Hi all, I am writing a simple monopoly board game, there're only 2
tokens, one is controlled by human, another by PC. I am trying to
make it turn based and move around the map step by step. Then when I
use TimerTask to trigger the step-forward movement, it's ok for the
token controlled by human, but for the PC one. It doesn't move as
expected. Below is part of the codes for Dice Roll button& Done
button.

timer.schedule(new TimerTask(){
private int temp = Dice1 + Dice2;
public void run(){
if (temp> 0){
SystemLogHelper.debug("btnRoll()'s players.get(index): " + index);
movePlayer(players.get(index), tempFlagPlayer); // move player one
space each time
temp --;
}else{
checkPlayerMovedStatus(players,tempFlagPlayer);
cancel();
}
repaint();
}
}, 100L,100L);
how could I make sure that btnRoll() is done then go to the next
code?
Any help would be appreciated.

Timer runs TimerTask in a _separate_ thread. There are a few ways you
could synchronize this, but I'd recommend looking at wait()/notify().
Try to remember that you are waiting for your TimerTask to be called
Dice1+Dice2 times before you leave.

wait()/notify() is not exactly the easiest way to synchronize
in Java.

It is more like the most difficult.

synchronized keyword or or some of the stuff in java.util.concurrent
would be a lot easier to get right.

Arne