Java Calendar setTimeInMillis()用法及代码示例

Calendar类中的setTimeInMillis(long mill_sec)方法用于根据传递的long值设置由此Calendar表示的Calendars时间。

用法:

public void setTimeInMillis(long mill_sec)

参数：该方法采用long类型的一个参数mill_sec，表示要设置的给定日期。

返回值：该方法不返回任何值。

以下示例程序旨在说明Calendar类的setTimeInMillis()方法的用法：
示例1:

// Java code to illustrate 
// setTimeInMillis() method 
  
import java.util.*; 
  
public class Calendar_Demo { 
    public static void main(String args[]) 
    { 
  
        // Creating calendar object 
        Calendar calndr = Calendar.getInstance(); 
  
        // Getting the time in milliseconds 
        System.out.println("The Current"
                           + " Time is: "
                           + calndr.getTime()); 
  
        // Changing time to 2000 milli-second 
        calndr.setTimeInMillis(2000); 
  
        // Displaying the new time 
        System.out.println("After setting"
                           + " Time: "
                           + calndr.getTime()); 
    } 
}

输出：

The Current Time is: Fri Feb 22 08:00:54 UTC 2019
After setting Time: Thu Jan 01 00:00:02 UTC 1970

示例2:

// Java code to illustrate 
// setTimeInMillis() method 
  
import java.util.*; 
  
public class Calendar_Demo { 
    public static void main(String args[]) 
    { 
  
        // Creating calendar object 
        Calendar calndr = Calendar.getInstance(); 
  
        // Getting the time in milliseconds 
        System.out.println("The Current"
                           + " Time is: "
                           + calndr.getTime()); 
  
        // Changing time to 8000 milli-second 
        calndr.setTimeInMillis(8000); 
  
        // Displaying the new time 
        System.out.println("After setting"
                           + " Time: "
                           + calndr.getTime()); 
    } 
}

输出：

The Current Time is: Fri Feb 22 08:01:02 UTC 2019
After setting Time: Thu Jan 01 00:00:08 UTC 1970

参考： https://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#setTimeInMillis(long)

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注：本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 Calendar setTimeInMillis() Method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。