make code for this problem

You have been asked to write a program to schedule classrooms in a college building. Classrooms can be reserved for classes, seminars, guest speakers, and club meetings (such as the Java Users Group). Clubs can meet only after 5 p.m. and only if the room is not needed by any other group. Each group needing a classroom is given a priority. Classes in your college have the highest priority; clubs have the lowest priority. Some classes in your college have higher priority than others. Classrooms are characterized by their size, amenities (overhead projectors, etc.), and comfortable seats. Groups can request a classroom by room number or they can simply give a description of what they need. Groups may request a specific time slot or give a range of acceptable time slots. Rooms are not available after 10 p.m. or before 5 a.m.

java