Public? Class? My time? {

Private? int？ Hours? Minutes? Second;

Public? MyTime(int？ Hours? int？ Minutes? int？ Second)? {

super()；

This hour? =? Hours;

This minute? =? Minutes;

This, the second one? =? Second;

}

Public? Invalid? addSecond(int？ Seconds)? {

Second? +=? sec

}

Public? Invalid? addMinute(int？ min)？ {

Minutes? +=? min

}

Public? Invalid? addHour(int？ Hou)? {

An hour? +=? Hou;

}

Public? Invalid? Sub-second (int? Seconds)? {

Second? -=? sec

}

Public? Invalid? subMinute(int？ min)？ {

Minutes? -=? min

}

Public? Invalid? subHour(int？ Hou)? {

An hour? -=? Hou;

}

Public? Invalid? diaplay()？ {

System.out.println (hours? +? "When"? +? Minutes? +? "points" +? Second? +? "seconds");

}

}