Billboard Top 10\
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| Language | Java |
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| Owner | Anonymous |
| Created | 5 years ago |
| Modified | 5 years ago |
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// class name (object names)
public class Musician
{
// name, week in top 40, albumsSold, isPlatinum
private String name;
private int weeksInTop40;
private int albumsSold;
private boolean isPlatinum;;
// constructor
// eg Musician michael = new Musician("MJ", 20, 1000)
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import java.util.ArrayList; // for ArrayList methods
public class Billboard // Billboard objects/class
{
// create a list of those in the top 10 called 'top10'
private ArrayList<Musician> top10 = new ArrayList<Musician>();
/**
* Billboard stores the top 10 Musician objects. Need an
* 'add' method to add a musician
* IF there are less than 10
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// BillboardTester --- object?
public class BillboardTester
{
// main class, main program
public static void main(String[] args)
{
// create a new billboard object called top10
Billboard top10 = new Billboard();
//
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Instructions:
n this exercise, you will create a Top 10 Musicians of all time list.
A Musician class has been built that takes the name, number of albums sold, and number of weeks that artist has been on the Top40 list. The Musician class also has a boolean instance variable isPlatinum that determines if the musician has gone platinum, meaning they’ve sold over a million copies of the same record.
The Billboard class currently has a top10 ArrayList that will store the top 10 musicians as a list.
In the Billboard class, create an add method that will add a musician to the list if there are less than 10 musicians in the list, and if the musician has Platinum status. If there are 10 musicians in the list, then the method should call the replace method. Otherwise, a message should be displayed to the user that the musician could not be added to the top10 list.
The replace method compares the total number of weeks that the musician has been on the top40 list. If the musician with the lowest number of weeks on the top40 is lower than the number of weeks on the top40 of the new musician, then the old musician is replaced by the new one. There should be a message to the user that the old musician has been replaced by the new one. Otherwise, the user should be notified that the new musician cannot be added because they don’t have enough weeks on the top40. This method should be created in the Billboard class.
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