long getTimeInMillis()
描述 (Description)
java.util.Calendar.getTimeInMillis()方法以毫秒为单位返回此Calendar的时间。
声明 (Declaration)
以下是java.util.Calendar.getTimeInMillis()方法的声明
public long getTimeInMillis()
参数 (Parameters)
NA
返回值 (Return Value)
该方法以UTC毫秒返回当前时间。
异常 (Exception)
NA
例子 (Example)
以下示例显示了java.util.calendar.getTimeInMillis()方法的用法。
package com.iowiki;
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);
}
}
让我们编译并运行上面的程序,这将产生以下结果 -
Current time is : 1336226501635
Next time is : 1336226503635