import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
public class Test {
public static void main(String[] args) {
Date date = new Date();
List<Date> ds = test(date);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
for (Date d : ds) {
System.out.println(sdf.format(d));
}
}
static List<Date> test(Date date) {
Date start = dayStartDate(date);//转换为天的起始date
Date nextDayDate = nextDay(start);//下一天的date
List<Date> result = new ArrayList<Date>();
while (start.compareTo(nextDayDate) < 0) {
result.add(start);
//日期加15分钟
start = addFiveMin(start, 15);
}
return result;
}
private static Date addFiveMin(Date start, int offset) {
Calendar c = Calendar.getInstance();
c.setTime(start);
c.add(Calendar.MINUTE, offset);
return c.getTime();
}
private static Date nextDay(Date start) {
Calendar c = Calendar.getInstance();
c.setTime(start);
c.add(Calendar.DATE, 1);
return c.getTime();
}
private static Date dayStartDate(Date date) {
Calendar c = Calendar.getInstance();
c.setTime(date);
c.set(Calendar.HOUR_OF_DAY, 0);
c.set(Calendar.MINUTE, 0);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
return c.getTime();
}
}