program already written below need help with methods. thank you

********Listen.Java

public class Listen {

public static void main(String[] args)

{

Records music = new Records();

music.addMp3("King Creole", "Elvis Presley", 14.99, 11);

music.addMp3("Lady in Satin", "Billie Holiday", 13.95, 11);

music.addMp3("Go Bo Diddley", "Bo Diddley", 12.95, 12);

music.addMp3("Small hours", "Frank Sinatra", 17.90, 16);

System.out.println(music);

music.addMp3("Blue Train", "John Coltrane", 14.56, 5);

music.addMp3("Miles Ahead", "Miles Davis", 11.99, 10);

System.out.println(music);

}

}

*****Records.Java

import java.text.NumberFormat;

public class Records

{

private Mp3[] collection;

private int count;

private double totalCost;

public Records()

{

collection = new Mp3[100];

count = 0;

totalCost = 0.0;

}

public void addMp3(String title, String artist, double cost, int tracks)

{

if (count == collection.length)

increaseSize();

collection[count] = new Mp3 (title, artist, cost, tracks);

totalCost += cost;

count++;

}

public String toString()

{

NumberFormat fmt = NumberFormat.getCurrencyInstance();

String report = "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ";

report += "My Mp3 Collection ";

report += "Number of Mp3s: " + count + " ";

report += "Total cost: " + fmt.format(totalCost) + " ";

report += "Average cost: " +fmt.format(totalCost/count);

report += " Mp3 List: ";

for (int Mp3 = 0; Mp3 < count; Mp3++)

report += collection[Mp3].toString() + " ";

return report;

}

private void increaseSize()

{

Mp3[] temp = new Mp3[collection.length * 2];

for (int Mp3 = 0; Mp3 < collection.length; Mp3++)

temp[Mp3] = collection[Mp3];

collection = temp;

}

}

******Mp3.Java

import java.text.NumberFormat;

public class Mp3

{

private String title, artist;

private double cost;

private int tracks;

public Mp3(String name, String singer, double price, int numTracks)

{

title = name;

artist = singer;

cost = price;

tracks = numTracks;

}

public String toString()

{

NumberFormat fmt = NumberFormat.getCurrencyInstance();

String description;

description = fmt.format(cost) + "\t" + tracks + "\t";

description += title + "\t" + artist;

return description;

}

}

-Add two more mp3s of your choice to the collection

-Create a int variable index in listen.java. This value will be used to get one title from the collection.

------------------------------------------------------------------------------

Add this code to mp3.java (a getter):

public String getTitle()

{

return title;

}

------------------------------------------------------------------------------

Add this code to Records.java:

-

public String findTitle (int i)

{

return (collection[i].getTitle());

}

-----------------------------------------------------------------------------

Add this code to listen.java:

-Use a loop to allow user to enter 0 thru number of mp3s Added to select and list/display a Title of mp3 in the list. (example below is using the number entered called index)

If value entered is valid then do this line of code System.out.println(music.findTitle(index));

Index is used as the value entered, if value entered not valid try again. Allow loop to end!

If the value = 1, then Lady in Satin will displayed.

-Add the code to add up the costs in the collection and display the value. Yes, there is already a totalCost but need more All three java classes need code added

-Place this code in a for loop in Records.java and add the necessary code to the other two java files shown below. look at the for loop in toString()

total = total + (collection[mp3].getCost());

-In listen.java will ask for the total and print the total at end of program Total cost for collection:

-In mp3.java will give the the cost hence [hint:] getCost()

--------------------------------------------------------------------------------------------------------------------------------

Write a method to find most expensive mp3.

Write a method to find mp3 with most tracks

Print out results.

Modify current output and add prints.

-------------------------------------

My Mp3 Collection

Number of Mp3s: 4

Total cost: $59.79

Average cost: $14.95

Mp3 List:

$14.99 11 King Creole Elvis Presley

$13.95 11 Lady in Satin Billie Holiday

$12.95 12 Go Bo Diddley Bo Diddley

$17.90 16 Small Hours. Frank Sinatra

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

My Mp3 Collection

Number of Mp3s: 6

Total cost: $86.34

Average cost: $14.39

Mp3 List:

$14.99 11 King Creole Elvis Presley

$13.95 11 Lady in Satin Billie Holiday

$12.95 12 Go Bo Diddley Bo Diddley

$17.90 16 Small Hours. Frank Sinatra

$14.56 5 Blue Train John Coltrane

$11.99 10 Miles Ahead Miles Davis

-------------------------------------

My Mp3 Collection

Number of Mp3s: 8

Total Cost: $120.24

Average Cost: $15.03

Mp3 Listing:

$14.99 11 King Creole Elvis Presley

$13.95 11 Lady in Satin Billie Holiday

$12.95 12 Go Bo Diddley Bo Diddley

$17.90 16 Small hours Frank Sinatra

$14.56 5 Blue Train John Coltrane

$11.99 10 Miles Ahead Miles Davis

$14.95 12 After School Chuck Berry

$18.95 12 Elvis P Elvis Presley

enter number (-1 to quit) :

9

not valid, try again

enter number (-1 to quit) :

5

Miles Ahead

enter number (-1 to quit) :

3

Small hours

enter number (-1 to quit) :

2

Go Bo Diddley

enter number (-1 to quit) :

2

Go Bo Diddley

enter number (-1 to quit) :

-1

Total cost for collection is: 120.24

Most expensive mp3: Elvis P

Mp3 with most tracks: Small Hours