public class Random {
	public static void main(String[] args) {
		int n = 0;
		do {
			System.out.print("Give me the length of the array (positive integer): ");
			n = Input.readInt();
		} while (n <= 0);
		String[] array = new String[n];
		for (int i = 0; i < n; i++) {
			System.out.print("Give the address number: " + i + ": ");
			array[i] = Input.readLine();
		}
		int j = (int) (Math.random() * n);
		System.out.print(array[j]);
		}
	}