область видимости инициализации

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        int maximum;
        int minimum;

        int[] num = new int[10];

//        for (int i = 0; i < num.length; i++) {
//            num[i] = Integer.parseInt(reader.readLine());
//        }

        for (int i = 0; i < num.length; i++) {
            num[i] = i;
        }

        for (int i = 0; i < num.length; i++) {
            maximum = num[0];
            minimum = num[0];

            if (maximum < num[i]) {
                maximum = num[i];
            }
            if (minimum > num[i]) {
                minimum = num[i];
            }
        }

        for (int i : num) {
            System.out.println(i);
        }

        System.out.print(maximum + " " + minimum);
    }
}

Error:(44, 26) java: variable maximum might not have been initialized
Error:(44, 42) java: variable minimum might not have been initialized