프로그래머스 - 다트 게임

import com.sun.java.accessibility.util.SwingEventMonitor;

class Solution {
    public int solution(String dartResult) {
        int answer = 0;
        int[] score = new int[3];
        int index = -1;
        String[] dartSplit = dartResult.split("");
        for (int i = 0; i < dartSplit.length; i++) {
            if (dartSplit[i].matches("[0-9]")) {
                index++;
                score[index] = Integer.parseInt(dartSplit[i]);
                if (dartSplit[i + 1].matches("[0-9]")) {
                    score[index] = 10;
                    i++;
                }
            }
            switch (dartSplit[i]){
                case "D":
                    score[index] = (int) Math.pow(score[index], 2);
                    break;
                case "T":
                    score[index] = (int) Math.pow(score[index], 3);
                    break;
                case "*":
                    score[index] = score[index] * 2;
                    if (index >= 1) score[index - 1] = score[index - 1] * 2;
                    break;
                case "#":
                    score[index] = -score[index];
            }


        }
        for (int i = 0; i < 3; i++) {
            answer += score[i];
        }
        return answer;
    }
}