Java bubble sort with ArrayList and custom args

Bubble sort: http://en.wikipedia.org/wiki/Bubble_sort

As a bit of fun I wrote my own version of the bubble sort algorithm.

package bubblesort;

import java.util.ArrayList;
import java.util.Iterator;

/**
 * Java bubble sort example: This class shows how to sort an array list of
 * Integers using the bubble sort algorithm. Enter numbers as arguments to be
 * sorted.
 *
 * @author rsharp 9/4/12
 */
public class BubbleSort {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {

        if (args.length > 0) {

            ArrayList<Integer> numbersToSort = new ArrayList<Integer>();

            for (String arg : args) {
                try {
                    numbersToSort.add(Integer.parseInt(arg));
                } catch (NumberFormatException ex) {
                    System.out.println(arg + " is not a number. Please enter only numbers into the bubble sort!");
                }
            }

            //print array before sorting using bubble sort algorithm
            System.out.println("Array before the bubble sort");
            for (int i : numbersToSort) {
                System.out.print(i + " ");
            }

            //sort an array using bubble sort algorithm
            bubbleSort(numbersToSort);

            System.out.println("");

            //print array after sorting using bubble sort algorithm
            System.out.println("Array after bubble sort");
            for (int i : numbersToSort) {
                System.out.print(i + " ");
            }

        } else {
            System.out.println("Please enter a list of numbers to bubble sort!");
        }

    }

    /**
     * This method performs the bubble sort
     * @param numbersToSort
     */
    private static void bubbleSort(ArrayList<Integer> numbersToSort) {

        int temp = 0;
        for (int i = 0; i < numbersToSort.size() - 1; i++) {
            for (int j = 1; j < (numbersToSort.size() - i); j++) {
                if (numbersToSort.get(j - 1) > numbersToSort.get(j)) {
                    //swap the elements!
                    temp = numbersToSort.get(j - 1);
                    numbersToSort.set(j - 1, numbersToSort.get(j));
                    numbersToSort.set(j, temp);
                }

            }
        }
    }
}

You can run this from the command line with arguments. There is error checking for if no or incorrect arguments are sent in:

java bubblesort.BubbleSort 10 2 7 8 3 1 6 9 5 4