Java中的持续时间 toMillis() 方法及示例
使用Java.time 包中Duration 类的toMillis()方法获取该持续时间的毫秒数。
句法:
public long toMillis()
参数:此方法不接受任何参数。
返回值:此方法返回一个长值,它是此持续时间的毫秒数。
下面的示例说明了 Duration.toMillis() 方法:
示例 1:
// Java code to illustrate toMillis() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration using parse() method
Duration duration
= Duration.parse("P2DT3H4M");
System.out.println("Duration: "
+ duration);
// Get the number of milli-seconds
// using toMillis() method
System.out.println(duration.toMillis());
}
}
输出:
Duration: PT51H4M
183840000
示例 2:
// Java code to illustrate toMillis() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration using ofMillis() method
Duration duration
= Duration.ofMillis(10);
System.out.println("Duration: "
+ duration);
// Get the number of milli-seconds
// using toMillis() method
System.out.println(duration.toMillis());
}
}
输出:
Duration: PT0.01S
10
参考: https://docs.oracle.com/javase/9/docs/api/ Java/time/Duration.html#toMillis–