Java 中的持续时间至秒()方法，示例

原文:https://www . geesforgeks . org/duration-to seconds-method-in-Java-with-examples/

使用 java.time 包中持续时间类的至方法，以秒为单位获取该持续时间的值。

语法:

public long toSeconds()

参数:该方法不接受任何参数。

返回值:该方法返回一个长值，即该时长内的秒数。

以下示例说明了 Duration.toSeconds()方法:

例 1:

// Java code to illustrate toSeconds() 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 seconds
        // using toSeconds() method
        System.out.println(duration.toSeconds());
    }
}

输出:

Duration: PT51H4M
183840

例 2:

// Java code to illustrate toSeconds() method

import java.time.Duration;

public class GFG {
    public static void main(String[] args)
    {

        // Duration using ofSeconds() method
        Duration duration
            = Duration.ofSeconds(10);

        System.out.println("Duration: "
                           + duration);

        // Get the number of seconds
        // using toSeconds() method
        System.out.println(duration.toSeconds());
    }
}

输出:

Duration: PT10S
10

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/duration . html # to seconds–

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