java.util.Calendar getTimeInMillis()方法

java.util.Calendar.getTimeInMillis() 方法返回此Calendar以毫秒为单位的时间。

1 语法

public long getTimeInMillis()

2 参数

无

3 返回值

该方法返回当前时间的UTC毫秒。

4 示例1 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * java.util.Calendar getTimeInMillis()方法的例子
 */
import java.util.*;

public class CalendarDemo {

   public static void main(String[] args) throws InterruptedException {

      // create a calendar
      Calendar cal = Calendar.getInstance();

      // print current time in milliseconds
      System.out.println("Current time is : " + cal.getTimeInMillis());

      // add a delay of 2 seconds
      Thread.sleep(2000);

      // create a new calendar
      Calendar cal2 = Calendar.getInstance();

      // print the next time in milliseconds
      long d = cal2.getTimeInMillis();
      System.out.println("Next time is : " + d);

   }
}

输出结果为：

Current time is : 1336226501635
Next time is : 1336226503635