Java中的 TimeUnit toHours() 方法及示例
TimeUnit 类的toHours()方法用于获取 TimeUnit 对象表示的时间,以小时数表示,自 1970 年 1 月 1 日午夜 UTC 起。
句法:
public long toHours(long duration)
参数:此方法接受一个强制参数duration ,它是以毫秒为单位的持续时间。
返回值:此方法将转换后的持续时间返回为小时。
下面的程序说明了 TimeUnit toHours() 方法的实现:
方案一:
Java
// Java program to demonstrate
// toHours() 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 Hours
// using toHours() method
System.out.println("Time " + timeInMilliSec
+ " milliSeconds in Hours = "
+ time.toHours(timeInMilliSec));
}
}
Java
// Java program to demonstrate
// toHours() 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 Hours
// using toHours() method
System.out.println("Time " + timeInMilliSec
+ " milliSeconds in Hours = "
+ time.toHours(timeInMilliSec));
}
}
输出:
Time 1539585595812 milliSeconds in Hours = 427662
方案二:
Java
// Java program to demonstrate
// toHours() 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 Hours
// using toHours() method
System.out.println("Time " + timeInMilliSec
+ " milliSeconds in Hours = "
+ time.toHours(timeInMilliSec));
}
}
输出:
Time 1539585598692 milliSeconds in Hours = 427662