I'm making a stop watch where I'm using Java's SimpleDateFormat to convert the number of milliseconds into a nice "hh:mm:ss:SSS" format. The problem is the hours field always has some random number in it. Here's the code I'm using: I'm making a stop watch where I'm using Java's
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如何在Java中格式化hh：mm：ss.SSS格式的经过时间间隔？
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