Sorting matched arrays in Java

class Color implements Comparable {
  private int number;
  private int color;

  // (snip ctor, setters, etc.)

  public int getNumber() {
    return number;
  }
  public int getColor() {
    return color;
  }

  public int compareTo(Color other) {
    if (this.getNumber() == other.getNumber) {
      return 0;
    } else if (this.getNumber() > other.getNumber) {
      return 1;
    } else {
      return -1;
    }
  }
}

extra = [0,1,...,numbers.length-1]

int ptr[] = { 1, 2, 3 };

for (int i = 0; i < ptr.length; i++)
{
   printf("%d %dn", numbers[ptr[i]], colors[ptr[i]]);
}

public class Sort {

    private static void printTable(String caption, Integer[] numbers,
                Integer[] colors, Integer[] sortOrder){

        System.out.println(caption+
                "nNo   Num   Color"+
                "n----------------");

        for(int i=0;i<sortOrder.length;i++){
            System.out.printf("%x    %d     %dn",
                    i,numbers[sortOrder[i]],colors[sortOrder[i]]);

        }
    }


    public static void main(String[] args) {

        final Integer[] numbers = {1,4,3,4,2,6};
        final Integer[] colors  = {0x50,0x34,0x00,0xfe,0xff,0xff};
        Integer[] sortOrder = new Integer[numbers.length];

        // Create index array.
        for(int i=0; i<sortOrder.length; i++){
            sortOrder[i] = i;
        }
        printTable("nNot sorted",numbers, colors, sortOrder);

        Arrays.sort(sortOrder,new Comparator<Integer>() {
            public int compare(Integer a, Integer b){
                return numbers[b]-numbers[a];
            }});
        printTable("nSorted by numbers",numbers, colors, sortOrder);

        Arrays.sort(sortOrder,new Comparator<Integer>() {
            public int compare(Integer a, Integer b){
                return colors[b]-colors[a];
            }});
        printTable("nSorted by colors",numbers, colors, sortOrder);
    }
}

public class Sort {

    private static void printTable(String caption, Integer[] numbers,
                Integer[] colors, Integer[] sortOrder){

        System.out.println(caption+
                "nNo   Num   Color"+
                "n----------------");

        for(int i=0;i<sortOrder.length;i++){
            System.out.printf("%x    %d     %dn",
                    i,numbers[sortOrder[i]],colors[sortOrder[i]]);

        }
    }


    public static void main(String[] args) {

        final Integer[] numbers = {1,4,3,4,2,6};
        final Integer[] colors  = {0x50,0x34,0x00,0xfe,0xff,0xff};
        Integer[] sortOrder = new Integer[numbers.length];

        // Create index array.
        for(int i=0; i<sortOrder.length; i++){
            sortOrder[i] = i;
        }
        printTable("nNot sorted",numbers, colors, sortOrder);

        Arrays.sort(sortOrder,new Comparator<Integer>() {
            public int compare(Integer a, Integer b){
                return numbers[b]-numbers[a];
            }});
        printTable("nSorted by numbers",numbers, colors, sortOrder);

        Arrays.sort(sortOrder,new Comparator<Integer>() {
            public int compare(Integer a, Integer b){
                return colors[b]-colors[a];
            }});
        printTable("nSorted by colors",numbers, colors, sortOrder);
    }
}