我需要获得系统日期, Java提供<代码>新日期(<>>>>。
但是,我需要避免新的物体分配(Im在嵌入式系统上工作)。 如果没有分配新的<代码>Date物体,我如何获得系统时间?
正如jzd所说,你可以使用<代码>System. CurrenttimeMillis。 如需要Date,但不想制造newCalendar 有settimeInMillis方法。
If possible though, it would probably be better just to keep it as a long. If you only need a timestamp, effectively, then that would be the best approach.
这一工作应当:
System.currentTimeMillis();
至少在开放式JDK中,>>>:Date<<>>>>a>在本封面使用。
System 这是一种本土的初等学校方法,因此,我们不得不说,在保险范围内没有拨款,尽管在此看来不太可能。
使用<>System. CurrenttimeMillis()或System.nanotime(。
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