Reading last value of counter

Just print it out right before you set it to 1.
You can also set up one more int value at the beginning and then make it equal to counter at the same point right before resetting counter to 1, and then printout this variable later

There are no loops in the code given here
initialize a variable before the loop and set value in the last step of the loop.
Post some more code to more help

Try the following:

o_pos += (counter + 1);
	if ((now.getTime() - lastReceived.getTime()) > 100L) {
	    counter = 1;
	} else {
	    counter++;
	}

Select allOpen in new window

this will do what you need:

o_pos = ++counter;
if ((now.getTime() - lastReceived.getTime()) > 100L) {
     counter = 1;
}

Points to for_yan who suggested similiar in first comment

no, it still shows all counting:

OpenPositionControl o_pos  53
 OpenPositionControl o_pos  2
 OpenPositionControl o_pos  3
 OpenPositionControl o_pos  4
 OpenPositionControl o_pos  5
 OpenPositionControl o_pos  6
 OpenPositionControl o_pos  7
 OpenPositionControl o_pos  8
 OpenPositionControl o_pos  9
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DBFX open positions = RequestForPositionsAck{mAccount='all', mFXCMErrorDetails='null', mFXCMRequestRejectReason=-1, mParties=Parties [Party:3:D:FXCM ID();], mPosReqID='DB_U100D1_DSTkGF2JwKyCFT6dspZQs16Av1VrvzVlRjB7S7XjQdW26Qv9nPVT4u-605', mPosReqResult=PosReqResult:Valid Request (0), mPosReqStatus=PosReqStatus:Completed (0), mText='null', mTotalNumPosReports=26, mTradingSessionID='FXCM', mTradingSessionSubID='DBFXUSDD1', mPosMaintRptID='541484206', mMakingTime=1300061808097}
 OpenPositionControl o_pos  26
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 PMDS bidPx[0]   1.39242
DBFX open positions = RequestForPositionsAck{mAccount='all', mFXCMErrorDetails='null', mFXCMRequestRejectReason=-1, mParties=Parties [Party:3:D:FXCM ID();], mPosReqID='DB_U100D1_DSTkGF2JwKyCFT6dspZQs16Av1VrvzVlRjB7S7XjQdW26Qv9nPVT4u-660', mPosReqResult=PosReqResult:Valid Request (0), mPosReqStatus=PosReqStatus:Completed (0), mText='null', mTotalNumPosReports=26, mTradingSessionID='FXCM', mTradingSessionSubID='DBFXUSDD1', mPosMaintRptID='541484206', mMakingTime=1300061810916}
 OpenPositionControl o_pos  52
 OpenPositionControl o_pos  2
 OpenPositionControl o_pos  3
 OpenPositionControl o_pos  4
 OpenPositionControl o_pos  5

Select allOpen in new window

but I need only last.

now better, but anyway not only last value:

OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
DBFX open positions = RequestForPositionsAck{mAccount='all', mFXCMErrorDetails='null', mFXCMRequestRejectReason=-1, mParties=Parties [Party:3:D:FXCM ID();], mPosReqID='DB_U100D1_rj0cQTj6PpBi5PFJTXX3vimRSOD7xDZ0dkrglzNW1cItV5pD43iwMC-606', mPosReqResult=PosReqResult:Valid Request (0), mPosReqStatus=PosReqStatus:Completed (0), mText='null', mTotalNumPosReports=25, mTradingSessionID='FXCM', mTradingSessionSubID='DBFXUSDD1', mPosMaintRptID='541484206', mMakingTime=1300062251441}
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27
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DBFX open positions = RequestForPositionsAck{mAccount='all', mFXCMErrorDetails='null', mFXCMRequestRejectReason=-1, mParties=Parties [Party:3:D:FXCM ID();], mPosReqID='DB_U100D1_rj0cQTj6PpBi5PFJTXX3vimRSOD7xDZ0dkrglzNW1cItV5pD43iwMC-660', mPosReqResult=PosReqResult:Valid Request (0), mPosReqStatus=PosReqStatus:Completed (0), mText='null', mTotalNumPosReports=26, mTradingSessionID='FXCM', mTradingSessionSubID='DBFXUSDD1', mPosMaintRptID='541484206', mMakingTime=1300062252953}
 OpenPositionControl o_pos  27
 OpenPositionControl o_pos  27

Select allOpen in new window

In general, it doesn't damage my system, but field open positions flashing all the time

> now better, but anyway not only last value:

I don't understand. Can you clarify what you mean

>>Can you clarify what you mean
Means, before it shows all number from the beginning and now printout sum, 26 times. But I need only one time

That suggests the above calculation of the value is fine then
that sounds more like an issue with your loop or how you are displaying it.

I expect only one final result, when calculation finished, means stopped, because interruption interval is exceeded.

thats sounds outside the scope of the code in the question
suggest you open a new question to address that

Now I decrease interval down to 50L, so as soon I don't have new messages over 50L, I need just final amount, how many it was. Not permanent counting, only the last.

> Not permanent counting, only the last.

the first snippet I posted did that

open a new question to address how you are using it

no, it shows 26 times the same result

OK