AP Computer Science – A project involving multiple classes

Classes you will write:

1. A Song Class – maintains the following information about a song:
1. Song title
2. Number of minutes in song length
3. Number of seconds in song length ( must be 0-59)
2. A Disc Class – maintains the following information about a disc
1. Title of disc
2. Artist of disc
3. Number of songs on disc
4. An ArrayList of Song objects (songs on the disc)
3. A DiscChanger Class – maintains the following information about a Disc Changer
1. An ArrayList with up to 3 disc objects

Here are methods that must be present in each class:

Song Class

• Default Constructor (sets empty title, 0 for min, sec)
• Initalize Constructor (title, min, sec)
• String getTitle() // returns title of song
• int getMin() // returns minutes of song length
• int getSec // returns seconds of song length
• int getTotalSec()// returns total seconds of song length
• void setTitle() // set title of song
• void setMin() // set minutes of song length
• void setSec // set seconds of song length
• void toString // displays the song title, min, sec

Disc Class

• Default Constructor (parameter is file path used to access the text file which loads, title, artist, number of tracks and list of songs)
• String getTitle() // returns title of disc
• String getArtist() // returns artist of disc
• int getNumSongs() // returns the number of songs on disc
• int getMin() // returns minutes of disc length
• int getSec // returns seconds of disc length
• int getTotalSec()// returns total seconds of disc length
• Song getSong(int i)// returns song i from disc
• void setTitle() // set title of disc
• void setArtist() // set artist of disc
• void setNumSongs // set number of songs on disc
• void toString // displays the song title, artist and song list with times and total length of disc at the end (see example below)

Title: Houses of the Holy

Artist: Led Zeppelin

Songs: 8

Song List

The Song Remains The Same 6:26

The Rain Song 7:14

Over The Hills And Far Away 5:47

The Crunge 4:13

Dancing Days 5:22

D'yer Mak'er 5:18

No Quarter 6:52

The Ocean 5:32

Total Time = 46:44