Calendar.getTimeInMillis（）为同一实例返回不同的结果 [英] Calendar.getTimeInMillis() returns different results for same instance

问题描述

我有以下代码并在Calendar实例上调用getTimeInMillis（）。我希望返回值相同但在运行之间返回不同的结果。

I have the following code and calling getTimeInMillis() on a Calendar instance. I expect the return value to be same but it returns different results between runs.

结果如下所示，这是不同的。我做错了什么，需要改变什么？

The results were coming as below which are different. What am i doing wrong and what needs to be changed?

时间1369454400208
时间1369454400185
时间1369454400926

Time 1369454400208 Time 1369454400185 Time 1369454400926

public class MyTest {

public static void main(String[] args){

    Calendar calendar = new GregorianCalendar();

    calendar.set(calendar.YEAR, 2013);
    calendar.set(calendar.MONTH, 4);
    calendar.set(calendar.DATE, 24);
    calendar.set(calendar.HOUR, 12);
    calendar.set(calendar.MINUTE, 00);
    calendar.set(calendar.SECOND, 00);      

    System.out.print("Time " + calendar.getTimeInMillis());

}

推荐答案

你需要也重置毫秒。

calendar.set(Calendar.MILLISECOND, 0);

注意你应该使用 Calendar。* 来访问静态字段，而不是日历。* 。

Note you should use Calendar.* to access static fields, not calendar.*.

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