package com.thread;
public class testsleep
}class sleepthread implements runnable
try catch (interruptedexception e) }
}
/**
* causes the currently executing thread to sleep (temporarily cease
* execution) for the specified number of milliseconds, subject to
* the precision and accuracy of system timers and schedulers. the thread
* does not lose ownership of any monitors.
** @param millis
* the length of time to sleep in milliseconds
** @throws illegalargumentexception
* if the value of is negative
** @throws interruptedexception
* if any thread has interrupted the current thread. the
* interrupted status of the current thread is
* cleared when this exception is thrown.
*/public static native void sleep(long millis) throws interruptedexception;
/*** causes the currently executing thread to sleep (temporarily cease
* execution) for the specified number of milliseconds plus the specified
* number of nanoseconds, subject to the precision and accuracy of system
* timers and schedulers. the thread does not lose ownership of any
* monitors.
** @param millis
* the length of time to sleep in milliseconds
** @param nanos
* additional nanoseconds to sleep
** @throws illegalargumentexception
* if the value of is negative, or the value of
* is not in the range
** @throws interruptedexception
* if any thread has interrupted the current thread. the
* interrupted status of the current thread is
* cleared when this exception is thrown.
*/public static void sleep(long millis, int nanos)
throws interruptedexception
if (nanos < 0 || nanos > 999999)
if (nanos >= 500000 || (nanos != 0 && millis == 0))
sleep(millis);
}
這段**上面的注釋意思如下:
sleep(millis)方法用於讓當前執行緒暫停執行指定的毫秒數，取決於系統時間的精確度，當前執行緒並不會失去鎖。
sleep方法是乙個靜態方法。
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