import java.util.Arrays;

public class OrderedOnDisplay implements OrderedData {

	private int[] data = new int[10];

	private int size = 0;

	public void add(int item) {
		if (size == data.length) // grow the array
			data = Arrays.copyOf(data, data.length * 2);
		data[size] = item;
		++size;
	}

	public void displayData() {
		Arrays.sort(data, 0, size);
		System.out.print("[");
		for (int i = 0; i < size; ++i) {
			System.out.print(data[i]);
			if (i < size - 1)
				System.out.print(", ");
		}
		System.out.println("]");
	}

}