Disk -title: String -playTime: int // in minutes + Disk(title: String, playTime: int) + get Title(): String + getPlay Time(): int +toString(): String A Audio Video artist: String - director: String - tracksList: java.util.ArrayList - description: String + Audio(artist: String, title: String. play Time: int) +getArtitst(): String + getTracksList() + Video(director: String, description: String, title: String, play Time: int) + getDirector(): String +getDescription(): String + toString(): String + addTrack(name: String); void +removeTrack(name: String): void +toString(): String A. Disk class is characterized by a String attributes title and an integer playTime. This class has: A constructor that initializes all the attributes. • The getter and setter methods for the attributes. • A toString() method that returns each data field at a line in the form: "Title: " + title + "\nPlay time: " + playTime; B. Audio class inherits the class Disk. It has a String artist and an array list tracksList. This class has: • A constructor that initializes all attributes in which tracks List attribute has to be created. The getter methods and setters for the attributes.. • addTrack method that takes as parameter the name of the track to be added to the array. • remove Track method that takes as parameter the name of the track to be deleted from the array. • A toString() method that overrides the toString() method in the Disk class by adding the data fields of the Audio class in the same form.
Disk -title: String -playTime: int // in minutes + Disk(title: String, playTime: int) + get Title(): String + getPlay Time(): int +toString(): String A Audio Video artist: String - director: String - tracksList: java.util.ArrayList - description: String + Audio(artist: String, title: String. play Time: int) +getArtitst(): String + getTracksList() + Video(director: String, description: String, title: String, play Time: int) + getDirector(): String +getDescription(): String + toString(): String + addTrack(name: String); void +removeTrack(name: String): void +toString(): String A. Disk class is characterized by a String attributes title and an integer playTime. This class has: A constructor that initializes all the attributes. • The getter and setter methods for the attributes. • A toString() method that returns each data field at a line in the form: "Title: " + title + "\nPlay time: " + playTime; B. Audio class inherits the class Disk. It has a String artist and an array list tracksList. This class has: • A constructor that initializes all attributes in which tracks List attribute has to be created. The getter methods and setters for the attributes.. • addTrack method that takes as parameter the name of the track to be added to the array. • remove Track method that takes as parameter the name of the track to be deleted from the array. • A toString() method that overrides the toString() method in the Disk class by adding the data fields of the Audio class in the same form.
Chapter11: Advanced Inheritance Concepts
Section: Chapter Questions
Problem 16RQ
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