java来解决:已知某人生日,设计一个类,计算从当前日期开始到该人生日的天数.

Question

如题所述

Answer 1

public static int daysBetween(Date date1,Date date2)
{
Calendar cal = Calendar.getInstance();
cal.setTime(date1);
long time1 = cal.getTimeInMillis();
cal.setTime(date2);
long time2 = cal.getTimeInMillis();
long between_days=(time2-time1)/(1000*3600*24);

return Integer.parseInt(String.valueOf(between_days));
}
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