Radix sort java implementation

Radix.java

package main;

import java.util.LinkedList;
import java.util.Queue;

/**
 * Implementation of radix sort.
 * 
 * @author Anton Gustafsson
 *
 */
public class Radix {

	public static void main(String[] args) {
		new Radix();
	}

	/**
	 * Array with numbers to be sorted.
	 */
	public Radix() {
		int[] unsorted1 = { 9, 179, 139, 38, 10, 5, 36 };
		int[] unsorted2 = { 667342, 1745359, 556139, 343538, 5510, 45, 5536 };
		radixSort(unsorted1);
	}

	/**
	 * Performs radix sort, a kind of bucket sort. From right to left, take the
	 * least significant number and put them in their corresponding bucket. Then
	 * take them out, and that value is now sorted. Then do it again for all
	 * valules, ex first "ones", then "tens" and so on.
	 * 
	 * @param unsorted
	 */
	public void radixSort(int[] unsorted) {
		// Create a box with 10 buckets.
		Queue[] box = new Queue[10];
		for (int i = 0; i < box.length; i++) {
			box[i] = new LinkedList<Integer>();
		}

		System.out.print("Unsorted list:   ");
		printArray(unsorted);
		// Find the longest number in the unsorted array.
		int length = 0;
		for (int i = 0; i < unsorted.length; i++) {
			int n = (int) (Math.log10(unsorted[i]) + 1);
			if (n > length) {
				length = n;
			}
		}

		int m = 10; // The number to use modulo on
		int n = 1; // The number for rounding division.
		// Repeats as long as the highest number in the array.
		for (int i = 0; i < length; i++) {

			// Perform calculation and put element in correct bucket.
			for (int y = 0; y < unsorted.length; y++) {
				int nbr = (unsorted[y] % m) / n;
				box[nbr].add(unsorted[y]);
			}

			// Now remove the numbers in order and put them in a new array.
			int x = 0;
			for (int j = 0; j < box.length; j++) {
				while (!box[j].isEmpty()) {
					unsorted[x] = (int) box[j].remove();
					x++;
				}
			}
			System.out.print("Partly Sorted " + n + "'s: (");
			printArray(unsorted);
			m *= 10;
			n *= 10;
		}
		System.out.print("Sorting complete: ");
		printArray(unsorted);
	}

	/**
	 * Prints the given arrays elements.
	 * 
	 * @param arr
	 */
	private void printArray(int[] arr) {
		for (int i = 0; i < arr.length; i++) {
			System.out.print(arr[i] + ", ");
		}
		
		
		System.out.println(")");
	}
}