public class ArrayMax {
    public static int max(int min, int[] arr) {
        int max = min;
        for(int a : arr) {
            if (a > max) {
                max = a;
            }
        }
        return max;
    }
    public static void main(String[] args) {
        int[] arr = new int[]{2, 3, 4};
        
 
int ret = max(0, arr);
        System.out.println(ret);
    }
}