Question

Problem 2 Using the Album and Music StoreDemo from problem 1, write a method to find all of the albums that are cheaper than a specific price In the MusicStoreDemo, add a new method called getAlbumsCheaperThan. The method passes in the ArrayList of albums and the price. The method will return an ArrayList of all albums cheaper than the price passed in. Update the main method in the Music Store Demo and have it find all of the albums that are cheaper than 12.99 and display those albums. Class outline: © Album albumid:int albumName: String • artistName : String . price: double Album(int, String, String, double) .getAlbumId(): int .getAlbumName(): String .getArtistName(): String • getPrice(): double .. toString(): String MusicStoreDemo main(String[]); void getAlbumsByArtist(ArrayList<Album>, String) : ArrayList<Album> getAlbums Cheaper Than(ArrayList<Album>, double): ArrayList<Album>

Answer 1

Add this function in your code and replace the old main with the one given below.

public static ArrayList<Album> getAlbumsCheaperThan(ArrayList<Album> albums, double price)
{
    ArrayList<Album> result=new ArrayList<Album>();
    for(int i=0;i<albums.size();i++)
    {
        Album album=albums.get(i);
        if(album.getPrice()<price)
        {
            result.add(album);
        }
    }
    return result;
}

// main method

public static void main(String args[])
{
    ArrayList<Album> albums=new ArrayList<Album>();
    albums.add(new Album(1,"Thriller","Michael Jackson",10.49);
    albums.add(new Album(2,"OK Computer","Radiohead",12.99);
    albums.add(new Album(3,"Under the Pink","Tori Amos",11.99);
    albums.add(new Album(4,"The Bends","Radiohead",12.99);
    albums.add(new Album(5,"Steel Wheels","Rolling Stones",9.99);
    
    ArrayList<Album> result1=getAlbumsbyArtist(albums,"Radiohead");
    System.out.println(" Albums by Radiohead are:");
    for(int i=0;i<result1.size();i++)
    {
        System.out.println(result1.get(i));
    }
     ArrayList<Album> result2=getAlbumsCheaperThan(albums,12.99);
     System.out.println(" Albums Cheaper Than 12.99 are:");
    for(int i=0;i<result2.size();i++)
    {
        System.out.println(result2.get(i));
    }
}