<分区>
我正在尝试获取两个日期之间的天数。我在 JFXtras 的 Agenda 工作。
开始时间 = getStartTime() 返回java.util.Calendar
结束时间 = getEndTime() 返回java.util.Calendar
这是我目前所得到的:
void printAppointment(Appointment a) throws ParseException {
System.out.println(a.getSummary());
System.out.println(a.getDescription());
DateFormat formatter = new SimpleDateFormat("yyyy, MMM dd h:mm:ss a z");
System.out.println(formatter.format(a.getStartTime().getTime()));
System.out.println(formatter.format(a.getEndTime().getTime()));
System.out.println(a.getAppointmentGroup());
System.out.println(a.getLocation());
// My problem starts here
Calendar cal1 = new GregorianCalendar();
Calendar cal2 = new GregorianCalendar();
SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy");
Date date = sdf.parse(formatter.format(a.getStartTime().getTime()));
cal1.setTime(date);
date = sdf.parse(formatter.format(a.getEndTime().getTime()));
cal2.setTime(date);
// System.out.println("Days difference = " + daysBetween(cal1.getTime(), cal2.getTime()));
System.out.println("Days difference = can't be set");
}
private int daysBetween(Date d1, Date d2) {
return (int) ((d2.getTime() - d1.getTime()) / (1000 * 60 * 60 * 24));
}
//我的问题从这里开始 之后，我什么也没得到。打印以下内容:
Another Morning appointment
Another Description of morning appointment
2014, Jun 12 6:00:00 AM PDT
2014, Jun 13 2:00:00 AM PDT
jfxtras.labs.scene.control.Agenda$AppointmentGroupImpl@16e4577
null
请注意，天数差异被忽略了。
如果有人能帮助我，我将不胜感激。谢谢大家。
更新:
这是最终的工作实现，它在天、小时、分钟和秒方面有所不同，如下面的尝试所示。
Pel
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2014. Jun Mon.9 3:18PM
2014. Jun Wed.11 3:18PM
jfxtras.labs.scene.control.Agenda$AppointmentGroupImpl@12e3872
null
diffSeconds difference = 172800
diffMinutes difference = 2880
diffHours difference = 48
diffDays difference = 2
这是执行此操作的代码
void printAppointment(Appointment a) {
System.out.println(a.getSummary());
System.out.println(a.getDescription());
DateFormat formatter = new SimpleDateFormat("yyyy. MMM EEE.d h:mma");
System.out.println(formatter.format(a.getStartTime().getTime()));
System.out.println(formatter.format(a.getEndTime().getTime()));
System.out.println(a.getAppointmentGroup());
System.out.println(a.getLocation());
this.daysBetween(a.getStartTime().getTimeInMillis(), a.getEndTime().getTimeInMillis());
}
private void daysBetween(long t1, long t2) {
int diff = (int) (t2 - t1);
long diffSeconds = diff / 1000;
long diffMinutes = diff / (60 * 1000);
long diffHours = diff / (60 * 60 * 1000);
long diffDays = diff / (24 * 60 * 60 * 1000);
System.out.println("diffSeconds difference = " + diffSeconds);
System.out.println("diffMinutes difference = " + diffMinutes);
System.out.println("diffHours difference = " + diffHours);
System.out.println("diffDays difference = " + diffDays);
}