得到当前的时间并添5分钟

得到当前的时间并加5分钟
?????} else if (numMonth == 9) {
??????month = "10";
?????} else {
??????month = "" + (numMonth + 1);
?????}
?????if (day.length() == 1) {
??????day = "0" + day;
?????}
?????if (startHour.length() == 1) {
??????startHour = "0" + startHour;
?????}
?????if (startminute.length() == 1) {
??????startminute = "0" + startminute;
?????}

?????String date = year + month + day + startHour + startminute;