比较日期没有时间 [英] Compare date without time

问题描述

可能重复：

如何比较没有时间部分的两个日期？

如何比较java中没有时间的日期？

How to compare date without time in java ?

Date currentDate = new Date();// get current date           
Date eventDate = tempAppointments.get(i).mStartDate;
int dateMargin = currentDate.compareTo(eventDate); 

此代码比较时间和日期！

this code compares time and date !

推荐答案

尝试比较更改为00:00:00的日期（如此函数所示）：

Try compare dates changing to 00:00:00 its time (as this function do):

public static Date getZeroTimeDate(Date fecha) {
    Date res = fecha;
    Calendar calendar = Calendar.getInstance();

    calendar.setTime( fecha );
    calendar.set(Calendar.HOUR_OF_DAY, 0);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);

    res = calendar.getTime();

    return res;
}

Date currentDate = new Date();// get current date           
Date eventDate = tempAppointments.get(i).mStartDate;
int dateMargin = getZeroTimeDate(currentDate).compareTo(getZeroTimeDate(eventDate));

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