java program a mp3 catalogue

Question

Hi!
i am new to programming and especially to Java. I have been given a task o complete which is to program a mp3 catalogue. An example could be like itunes where the songs are listed and could be played by clicking on them but for my task its all theoretical which mean that i do not need to program to play the songs but need to insert, delete, re-order, search and shuffle.

The task is :
task is to produce Java program which represents a catalogue of MP3 tracks to contain the following information:
• Track number
• Artist/band
• Duration
Your programme should perform the following functions:
• Insertion
• Deletion
• Re-ordering (move track)
• Searching (and rep
• Shuffling (random selection)
Input to the program is via the keyboard and output is via the console.

I am not asking to create the full program even though that will be amazing! but i just need to aleast have a code to start of and end. (by the way it will be so helpful if you create the code so i can read it off and see how you lot have done it.
Look forward in seeing what help i get back.
Also i need to have Arrays in the and the code should be on Java and the software eclipse. 

Answer 1

Zargham, I am new to wyzant so I will try and assist you on your question while at the same time adhere to academic honesty.  There are several examples on the Internet that show you how you can perform this exercise.

 

If this is for a class, then can you utilize Java Collections instead of Arrays.  Arrays are from the past, they are fixed (not dynamic).  Collections are dynamic Object Oriented Java classes that perform everything that you wish in a few lines of code.

 

Once you try a simple example, you should see how much easier and straight forward this is, go here:

http://www.tutorialspoint.com/javaexamples/java_collections.htm

 

Simply put.  You would build an object of type class of MP3, e.g. MP3.java

 

public class MP3 {

  private int trackNumber = 0;
  private String artist = "";

  private String band = "";

  private double duration= 0;

 

  // Constructor here

  public MP3(int trackNumber, ...) {

  }

 

  put all your accessor / mutator methods here

}

 

Then create your other class to manipulate the data.

 

public class MP3_Catalog {

  List<MP3> mp3 = new ArrayList<MP3>();

 

  ...

 

  then you can sort, reorder, select specific records, manipulate everything using OO principals.

 

 

 I can write up a simpler example if the website was not straight forward and yes, use eclipse.