private static void stopWatch(String comment) {
		long current = System.currentTimeMillis();
		if (checkedNum > 0 && retweetedNum > 0) {
			resultWriteTimeSum += (current - split);
			double resultWriteAverageTime = resultWriteTimeSum / checkedNum;
			double remainingSec = resultWriteAverageTime * (retweetedNum - checkedNum) / 1000;
			double remainingMin = remainingSec / 60;
			comment = String.format("%s(%.1fmin remains...)", comment, remainingMin);
		}
		System.out.println((current - start) + "\t" + (current - split) + "\t" + comment);
		split = current;
	}