Exercise_5/Task_3

public class Task_3 {
    public static void main(String[] args) {
        int[] numbers = new int[]{8, 5, 27, 9};

        int temp;
        while (numbers[0] > numbers[1] || numbers[1] > numbers[2] || numbers[2] > numbers[3]) {
            if (numbers[1] < numbers[0]) {
                temp = numbers[1];
                numbers[1] = numbers[0];
                numbers[0] = temp;
            }
            if (numbers[2] < numbers[1]) {
                temp = numbers[2];
                numbers[2] = numbers[1];
                numbers[1] = temp;
            }
            if (numbers[3] < numbers[2]) {
                temp = numbers[3];
                numbers[3] = numbers[2];
                numbers[2] = temp;
            }
        }

        int min = 999*999*999;
        int difference = 999*999*999;
        for (int i = 0; i < numbers.length; i++) {
            if (i < (numbers.length - 1)) {
                difference = ((Math.abs(numbers[i]) - Math.abs(numbers[i + 1])));
            }
            if (Math.abs(difference) < min) {
                min = difference;
            }
        }
        System.out.println(Math.abs(min));
    }
}