Random Music Notes

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class RandomScales {

    public static void main(String[] args){

        //simpleRandom();
        //smarterRandom();
        clearerRandom();
    }

    public static void clearerRandom () {

        List<Integer> list = new ArrayList();

        for (int i=0; i<12; i++)
            list.add(i);

        String key = null;

        while(!list.isEmpty()) {

            Random r = new Random();

            int rollValue = list.get(r.nextInt(list.size()));

            list.remove(new Integer(rollValue));

            switch (rollValue) {
            case 0 :
                key = "C";
                break;
            case 1 :
                key = "C#";
                break;
            case 2 :
                key = "D";
                break;
            case  3 :
                key = "Eb";
                break;
            case 4 :
                key = "E";
                break;
            case 5 :
                key = "F";
                break;
            case 6 :
                key = "F#";
                break;
            case 7 :
                key = "G";
                break;
            case  8 :
                key = "Ab";
                break;
            case 9 :
                key = "A";
                break;
            case 10 :
                key = "Bb";
                break;
            case 11 :
                key = "B";
                break;

            }

            System.out.println("Roll " + key);
        }


    }
    public static void smarterRandom () {

        List<Integer> list = new ArrayList();

        for (int i=0; i<12; i++)
            list.add(i);

        String key = null;

        for(int i=11; i>0; i--) {

            Random r = new Random();

            int rollValue = list.get(r.nextInt(i));

            list.remove(new Integer(rollValue));

            switch (rollValue) {
            case 0 :
                key = "C";
                break;
            case 1 :
                key = "C#";
                break;
            case 2 :
                key = "D";
                break;
            case  3 :
                key = "Eb";
                break;
            case 4 :
                key = "E";
                break;
            case 5 :
                key = "F";
                break;
            case 6 :
                key = "F#";
                break;
            case 7 :
                key = "G";
                break;
            case  8 :
                key = "Ab";
                break;
            case 9 :
                key = "A";
                break;
            case 10 :
                key = "Bb";
                break;
            case 11 :
                key = "B";
                break;

            }

            System.out.println("Roll " + key);
        }


    }

    public static void simpleRandom () {
        List<Integer> list = new ArrayList();

        String key = null;


        for(int i=0; i<12; i++) {

            Random r = new Random();

            int rollValue = r.nextInt(12);

            while (list.contains(rollValue))
                rollValue = r.nextInt(12);

            list.add(rollValue);


            switch (rollValue) {
            case 0 :
                key = "C";
                break;
            case 1 :
                key = "C#";
                break;
            case 2 :
                key = "D";
                break;
            case  3 :
                key = "Eb";
                break;
            case 4 :
                key = "E";
                break;
            case 5 :
                key = "F";
                break;
            case 6 :
                key = "F#";
                break;
            case 7 :
                key = "G";
                break;
            case  8 :
                key = "Ab";
                break;
            case 9 :
                key = "A";
                break;
            case 10 :
                key = "Bb";
                break;
            case 11 :
                key = "B";
                break;

            }

            System.out.println("Roll " + key);
        }
    }
}