類似撥打電話時累計記錄打了多少秒的時間重新整理效果

00:01---00:02---00:03---00:04---00:05。。。。以此後推 

 final long time=System.currentTimeMillis();
	    ScheduledExecutorService thread=Executors.newScheduledThreadPool(5);
	    thread.scheduleAtFixedRate(new Runnable() {
			
			public void run() {
				int showtime=(int)(System.currentTimeMillis()-time)/1000;
				System.out.println(formatTimespan(showtime));
				
			}
		},0,1,TimeUnit.SECONDS);
 

public static String formatTimespan(int totalSeconds) {
        long minutes = totalSeconds / 60;
        long seconds = totalSeconds % 60;
        return String.format(Locale.US, "%02d:%02d", minutes, seconds);
    }

效果如下所示

00:00
00:01
00:02
00:03
00:04
00:05
00:06
00:07
00:08
00:09
00:10
00:11