Где ошибка?
package com.javarush.task.task07.task0721;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
/*
Минимаксы в массивах
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int [] list = new int[20];
int maximum = 0;
for (int i = 0; i < list.length; i++) {list[i] = Integer.parseInt(reader.readLine());}
int minimum = list[0];
for (int i = 0; i < list.length; i++) { maximum = Math.max(maximum, list[i]); }
for (int i = 0; i < list.length; i++) { minimum = Math.min(minimum, list[i]); }
System.out.print(maximum + " " + minimum);
}
}