Max and Min value masivi

class Main {
    public static int maxNumberInArray(int[] arr){
        int max = Integer.MIN_VALUE;
        for (int i = 0; i < arr.length; i++) {
            if(arr[i] > max){
                max = arr[i];
            }
        }
        return max;
    }
    public static int minNumberInArray(int[] arr){
        int min = Integer.MAX_VALUE;
        for (int i = 0; i < arr.length; i++) {
            if(arr[i] < min){
                min = arr[i];
            }
        }
        return min;
    }
    public static void main(String[] args) {
        int[] arr = {4,45,67,23,34,999,67};
        System.out.println( maxNumberInArray( arr));
        System.out.println( minNumberInArray( arr));
    }
}