Java Duration toMillis()方法及示例

java.time包中Duration类的toMillis()方法是用来获取该持续时间的毫秒数的值。

语法。

public long toMillis()

参数。此方法不接受任何参数。

返回值。该方法返回一个长值，即该持续时间中的毫秒数。

下面的例子说明了Duration.toMillis()方法。

例子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: