Java 中的 TimeUnit toMicros()方法，示例

原文:https://www . geesforgeks . org/time unit-tomi cros-method-in-Java-with-examples/

时间单位类的ToiCross()方法用于获取从 1970 年 1 月 1 日午夜协调世界时开始，由时间单位对象表示的时间，单位为微秒数。

语法:

public long toMicros(long duration)

参数:该方法接受一个强制参数持续时间，即以毫秒为单位的持续时间。

返回值:该方法以微秒为单位返回转换后的持续时间。

下面的程序举例说明了 TimeUnit toMicros()方法的实现:

程序 1:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate
// toMicros() method of TimeUnit Class

import java.util.concurrent.*;
import java.util.Date;

class GFG {
    public static void main(String args[])
    {
        // Get current time in milliseconds
        long timeInMilliSec = new Date().getTime();

        // Create a TimeUnit object
        TimeUnit time = TimeUnit.MILLISECONDS;

        // Convert milliseconds to MicroSeconds
        // using toMicros() method
        System.out.println("Time " + timeInMilliSec
                           + " milliSeconds in MicroSeconds = "
                           + time.toMicros(timeInMilliSec));
    }
}

Output: 

Time 1539585538596 milliSeconds in MicroSeconds = 1539585538596000

程序 2:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to demonstrate
// toMicros() method of TimeUnit Class

import java.util.concurrent.*;
import java.util.Calendar;

class GFG {
    public static void main(String args[])
    {
        // Get current time in milliseconds
        long timeInMilliSec = Calendar
                                  .getInstance()
                                  .getTimeInMillis();

        // Create a TimeUnit object
        TimeUnit time = TimeUnit.MILLISECONDS;

        // Convert milliseconds to MicroSeconds
        // using toMicros() method
        System.out.println("Time " + timeInMilliSec
                           + " milliSeconds in MicroSeconds = "
                           + time.toMicros(timeInMilliSec));
    }
}

Output: 

Time 1539585540908 milliSeconds in MicroSeconds = 1539585540908000

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