Java TimeUnit toSeconds()方法及示例

TimeUnit类 的 toSeconds() 方法用于获取TimeUnit对象所代表的时间，即从1970年1月1日UTC午夜开始的秒数。

语法

public long toSeconds(long duration)

参数： 该方法接受一个强制性参数 duration ，它是以毫秒为单位的持续时间。
返回值： 该方法返回 转换后的持续时间 为Seconds。以下程序说明了TimeUnit toSeconds()方法的实现：

程序1 :

// Java program to demonstrate
// toSeconds() 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 Seconds
        // using toSeconds() method
        System.out.println("Time " + timeInMilliSec
                           + " milliSeconds in Seconds = "
                           + time.toSeconds(timeInMilliSec));
    }
}

输出

Time 1539585656193 milliSeconds in Seconds = 1539585656

程序2 。

// Java program to demonstrate
// toSeconds() 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 Seconds
        // using toSeconds() method
        System.out.println("Time " + timeInMilliSec
                           + " milliSeconds in Seconds = "
                           + time.toSeconds(timeInMilliSec));
    }
}

输出

Time 1539585659342 milliSeconds in Seconds = 1539585659