Make a list of classes that you may need for this program. 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.

Ihave a music player on my phone. i can buy songs, add them to playlists and play them. obviously it would be redundant to store each song in each playlist; each playlist is just a list of pointers to the songs. for this lab you will simulate this behavior. your program will need to have options to: add songs to the system library (you will store the text of the first line of the song, rather than the audio) add playlists add songs to a playlist list playlists play a playlist list all of the songs in the library with a count of how many times each song has been played remove a song from a playlist remove a playlist remove a song from the library (and thus from all playlists that contain it) note that we will not be checking many error cases. in real programming this would be bad, you should usually try to recognize and respond to as many types of errors as you can. in the context of class we are trying to acquaint you with as many concepts as possible, so for the sake of educational efficiency we will not be checking most errors in this lab, you may assume that your user provides correct input. you may add all appropriate error testing if you wish, but we will not be testing for it.