CMSC 256 -Project 1 Programming Assignment 1 Note: When you turn in an assignment to be graded in this class, you are making the claim that you neither gave nor received assistance on the work you turned in (except, of course, assistance from the instructor or teaching assistants) Program: Inheritance Implementation Part 1-DigitalMedia Super Class Define a super class to model digital media. Sound, images, text and video are all available in digital format for use on a computer system. The class DigitalMedia is a generalization of these kinds of files. It has two fields: name(String) is the file name that includes the file extension, sizellong) is the file size in bytes. Design the class so that individual instances never contain null fields. The parameterized constructor must validate both parameters before creating the instance. All classes will e graded using a JUnit test suite, so the method headings for all methods need to test class exactly. Refer to the UML diagram to confirm the method headings of your code Implement standard naming conventions. In addition, overide the following methods from the Object class Implement accessor (etter)and mutator (setter) methods for each of the instance variables using the e public boolean equals(Object other) public String toString) The equals method parameter must be of type Object. Two DigitalMedia objects are equal if they have the same state as represented by the instance variables. Guidelines for overriding the equals method: . Use the w operator to check if the argument is a reference to itself e Use the Instanceof operator to check if the argument has the correct data type- DigitalMedia in this case. * Cast the argument to the same data type as the class- DigitalMedia in this case. For each significant data member, test for equality Test these three properties: o Is it symmetric? o Is it transitive? o is it consistent? Your source code file name should be DigitalMedia java. CMSC 256- Project 1 Part 2 -Song and Image Subclasses Write the following Java subclasses of the DigitalMedia class from Part 1: Song to represent a song in a music collection. o In addition to the inherited instance variables from the super class, there are two data members of the Song class. These are String objects representing the artist's name (artist) and the album where the song can be found (album). These instance variables for the class are to have private access modifiers so you will need to write the appropriate methods to allow a client to access and modify the data values. In accordance with good programming practice, you are to override the equals and t methods inherited from the DigitalMedia class. o String!) A Song's title is the same as the name instance variable in the super class without the extension. Two Song objects are considered equalif they have the same title,artist, album, and size. . Image to represent a digital image file. An image has the additional instance variables width and height, both of type int As for the Song class, implement getters, setters, equals, and toStringl) for the Image class. Two images are considered equal if they have the same name, size, width, and height o o CMSC 256-Project 1 Part 3-MediaList Class Implement a class called Medialist that contains a main method that reads in a file name via the command line. The file is a listing of songs and images. In the file, information about each media item is on a single line. For Songs, the line is formatted with the letter s, song file name, the artist name, the album, and size in which each element is separated by a colon (:) and varying amounts of white space. For example, S: Mykonos.mp3: Fleet Foxes Mykonos-Single: 9507904 S: He Doesn't Know Why.mp3 Fleet Foxes Fleet Foxes 7080711 For Images, the line is formatted with the letter i, the image file name, the width, the height, and size in which each element is separated by a colon (:) and varying amounts of white space. For example, I: Beach.jpg: 2048:1536: 1163207 i: IMG 3658.JPG: 2448:3264 1384318 The MediaList program is to: Read in the input file creating Song and Image objects from the data contained in the lines of the file. Failure to create individual Song/image objects will result in severe point penalties. Store the Songs and Images in a single Arraylist of type DigitalMedia. Using multiple ArrayLists is not permitted Prompt the user to enter either S or I to see a display of all of the Digital Media of that type. If is entered, display a formatted list of all the images by calling the toString() method for each Image object. . e . . if"s" is entered, display a formatted list of all the songs by calling the toStringl) method for each Song object. am is well documented - including the comment block header.at the ton of all ot the source code f iles with your name, the course number and name, the project name, the program purpose. Be sure to include appropriate comments throughout your code, choose meaningful identifiers, and use indentation as shown in your textbook and in class. It is expected that your pro method in Medialist.java called printHeading that outputs the following information to the console in an gram will be well documented and you are required to include a private helper format: your name, the project number, the course identifier, and the current semester. You wi call this method as the first statement in your main method. You will upload the project source code files, DigitalMedia java, Song-java, Image Java, and Medialist java to the Assignment link in Blackboard. CMSC 256 - Project 1 Name: Part 1-DigitalMedia class Class elements (instance variables, constructor, accessor methods) are correct (5 pts.) equals method written correctly (5 pts.) toString) method written correctly (5 pts.) Class design includes appropriate code to uphold encapsulation (5 pts.) Part 2-Song and Image Subclasses Song class: Class elements (instance variables, constructor, accessor methods) are correct (5 pts.) equals method written correctly (5 pts.) toString() method written correctly (5 pts.) Class correctly implemented as a subclass, using principle of inheritance (5 pts.) Image class: Class elements (instance variables, constructor, accessor methods) are correct (5 pts.) equals method written correctly (5 pts.) toString() method written correctly (5 pts.) Class correctly implemented as a subclass, using principle of inheritance (5 pts.) Part 3 MediaList Class printHeading) method included and called from main) (5 pts.) Reads command line argument for file name (5 pt.) Accurately reads data from file to create objects as specified(10 pt.) All classes: Code written to anticipate and handle improper data and other errors (10 pt.) Files are named and submitted as specified (S pts.) Appropriate use of comments (including header comments on all files) (5 pts.) Total (100 pts.) Grading Comments