Generate Lucky For Life Lottery Numbers

/*
 * Lu Liu
 * 11/30/2015
 * CSCI-111-D01
 * Generate Lucky For Life Lottery Numbers
 */
package chapter07;

import java.util.Random;
import java.util.Scanner;

public class LotteryNumberGenerator {

    public static void main(String[] args) {
        final String TITLE = "Lottery Number Generator";
        final String CONTINUE_PROMPT = "Do this again? [y/N] ";
        System.out.println("Welcome to " + TITLE);
        Scanner sc = new Scanner(System.in);
        do {
            getGroupNumbers(5);
            getBallNumber();
        } while (doThisAgain(sc, CONTINUE_PROMPT));
        sc.close();
        System.out.println("Thank you for using " + TITLE);
    }

    private static boolean doThisAgain(Scanner sc, String prompt) {
        System.out.print(prompt);
        String doOver = sc.nextLine();
        return doOver.equalsIgnoreCase("Y");
    }

    // Sort Group Numbers
    public static void selectionSort(int[] list) {
        for (int i = 0; i < list.length - 1; i++) {
            int currentMin = list[i];
            int currentMinIndex = i;
            for (int j = i + 1; j < list.length; j++) {
                if (currentMin > list[j]) {
                    currentMin = list[j];
                    currentMinIndex = j;
                }
            }
            if (currentMinIndex != i) {
                list[currentMinIndex] = list[i];
                list[i] = currentMin;
            }
        }
    }

    // Get Group Numbers And Print Out
    public static int[] getGroupNumbers(int n) {
        int[] lottery = new int[n];
        int[] chooseFrom = new int[43];
        for (int i = 1; i <= 43; i++)
            chooseFrom[i - 1] = i;
        Random rand = new Random();
        int N = 43;
        int index;
        for (int i = 0; i < n; i++) {
            index = rand.nextInt(N);
            lottery[i] = chooseFrom[index];
            chooseFrom[index] = chooseFrom[N - 1];
            N--;
        }
        selectionSort(lottery);
        System.out.print("Your Lucky For Life Cash numbers are:");
        for (int i = 0; i < n; i++)
            System.out.printf("%2d ", lottery[i]);
        System.out.println();
        return lottery;
    }

    // Get Ball Number And Print Out
    public static void getBallNumber() {
        System.out.println("Your Lucky Ball Number is: " + ((int) (Math.random() * 43) + 1));
    }
}