최댓값과 최솟값(Lv.2)[프로그래머스]

import java.util.*;
class Solution {
    public String solution(String s) {
        String answer = "";
        List<String> split = new ArrayList<>(List.of(s.split(" ")));
        List<Integer> integers = new ArrayList<>();
        for (String s1: split){
            int number = Integer.parseInt(s1);
            integers.add(number);
        }
        Collections.sort(integers);
        answer+= integers.get(0);
        answer+= " ";
        answer+= integers.get(integers.size()-1);
        
        return answer;
    }
}

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