import java.util.*;

public class ArraysExercise
{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);

        int n = 30;

        int[] numbers = new int[n];
        for (int i=0; i < numbers.length; i++)
            numbers[i] = i + 1;


        for (int i = 0; i < numbers.length; i++)
        {
            int r = (int) (Math.random() * n);

            numbers[i] = r;
        }


        System.out.println("----");

        System.out.println(Arrays.toString(numbers));

        Arrays.sort(numbers);

        System.out.println(Arrays.toString(numbers));

        Arrays.fill(numbers, 0);

        System.out.println(Arrays.toString(numbers));

        int[] numbers2 = numbers;

        int[] numbers3 = Arrays.copyOf(numbers2, numbers2.length);

        System.out.println(numbers2 == numbers3);

        System.out.println(Arrays.equals(numbers, numbers3));

    }
}