Java 中 Duration toMillis()方法,示例

原文:https://www . geesforgeks . org/duration-tomi llis-method-in-Java-with-examples/

使用 java.time 包持续时间类Tomilis()方法获取该持续时间的值,单位为毫秒。

语法:

public long toMillis()

参数:该方法不接受任何参数。

返回值:该方法返回一个长值,即该时长内的毫秒数。

以下示例说明了 Duration.toMillis()方法:

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

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 # tomilis–