프로그래머스 level1 : 개인정보 수집 유효기간 - Java

import java.util.*;
import java.lang.Math;

class Solution {
    public int[] solution(String today, String[] terms, String[] privacies) {
    List<Integer> answer = new ArrayList<>();
    Map<String, Integer> termMap = new HashMap<>();
    int day = getDate(today);

    for(String term : terms){
      String[] t = term.split(" ");
      termMap.put(t[0], Integer.parseInt(t[1]));
    }

    for(int i = 0; i < privacies.length; i++){
      String[] p = privacies[i].split(" ");
      int endDay = getDate(p[0]) + termMap.get(p[1]) * 28 - 1;
      if(day > endDay) {answer.add(i+1); }
    }
    return answer.stream().mapToInt(i -> i).toArray();
    }
    
    public int getDate(String today){
        System.out.println(today);
        String[] date = today.split("\\.");
        int year = Integer.parseInt(date[0]) * 28 * 12;
        int month = Integer.parseInt(date[1]) * 28;
        int day = Integer.parseInt(date[2]);
        return year + month + day;
    }
}