java如何获取上次拆分后的最后时间间隔？

Question

我想在节目开始时用秒表

并记录一些时间间隔的时间分割

我更喜欢哪个秒表

import com.google.common.base.Stopwatch;

org.apache.commons.lang.time.StopWatch

例如：

Start -----> split 1 (1:00 min from split 0) ----> split 2 (0:30 from split 1) -->  split 3 (0:35 from split 2)

而不是

Start -----> split 1 (1:00 min from start) ----> split 2 (0:30 from from start) ----> split 3 (0:35 from from start) 

还有比这更优雅的方式吗

stopWatch.split();
stopWatch.getSplitTime() - lastSpiltTime;
last splitTime = stopWatch.getSplitTime();

Answer 1

或者你可以用这个：

private long stopWatchGap(StopWatch stopWatch) {
    try {
        stopWatch.stop();
        return stopWatch.getTime();
    } finally {
        stopWatch.reset();
        stopWatch.start();
    }
}

只是为了返回间隙值

Answer 2

不幸的是，这是唯一的办法。我也有同样的需求，但ApacheStopWatch没有本机支持

我用了一种稍微不同的方式：

private void lapWatchAndLog( StopWatch watch, String messageForLap ) {

    watch.stop();
    LOGGER.info( String.format( "Time: [%s] %s", watch.getTime(), messageForLap ) );
    watch.reset();
    watch.start();
}