java面试高频问题——wait 和sleep 的区别

最新推荐文章于 2023-08-19 11:38:37 发布

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最新推荐文章于 2023-08-19 11:38:37 发布

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分类专栏：面试相关文章标签： java 多线程 wait sleep

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源码如下

public class Thread implements Runnable {
public static native void sleep(long millis) throws InterruptedException;
	public static void sleep(long millis, int nanos) throws InterruptedException {
		if (millis < 0) {
			throw new IllegalArgumentException("timeout value is negative");
		}
		if (nanos < 0 || nanos > 999999) {
			throw new IllegalArgumentException("nanosecond timeout value out of range");
		}
		if (nanos >= 500000 || (nanos != 0 && millis == 0)) {
			millis++;
		}
		sleep(millis);
	}
	//...
}

public class Object {
	public final native void wait(long timeout) throws InterruptedException;
	public final void wait(long timeout, int nanos) throws InterruptedException {
		if (timeout < 0) {
			throw new IllegalArgumentException("timeout value is negative");
		}
		if (nanos < 0 || nanos > 999999) {
			throw new IllegalArgumentException("nanosecond tim