[프로그래머스 코딩테스트] java Lv.0 배열 만들기3

import java.util.*;
class Solution {
    public ArrayList<Integer> solution(int[] arr, int[][] intervals) {
        ArrayList <Integer> answer = new ArrayList<>();
        for(int i=intervals[0][0]; i<=intervals[0][1];i++){
            answer.add(arr[i]);
        }
        for(int i=intervals[1][0]; i<=intervals[1][1];i++){
            answer.add(arr[i]);
        }  
        return answer;
    }
}