Day1Solution.java

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;

public class Day1 {
    public static void main(String[] args) throws Exception{
        String calories = """
1000
2000
3000

4000

5000
6000

7000
8000
9000

10000                
                """;

        BufferedReader br = new BufferedReader(new FileReader("day1.txt"));

        int calorie = 0;
        int mostCalories = 0;

        List<Integer> calorieList = new ArrayList<>();

        String line;
        //for (String line : calories.split("\n")) {
        while ((line = br.readLine()) != null) {
            String strCal = line.trim();
            if (strCal.isBlank()) {
                if (mostCalories < calorie) {
                    mostCalories = calorie;
                }
                calorieList.add(calorie);
                calorie = 0;
                continue;
            }
            calorie += Integer.parseInt(strCal);
        }
        calorieList.add(calorie);
        if (mostCalories < calorie) {
            mostCalories = calorie;
        }

        System.out.println(mostCalories);

        calorieList.sort((a, b) -> b - a);
        System.out.println(calorieList.get(0) + calorieList.get(1) + calorieList.get(2));
    }
}