[Java] 문자열 시분초 -> 초단위로 변환(timeToSec) 구현

public static int timeToSec(String time) {
    String[] times = time.split(":");

    int hours = Integer.parseInt(times[0]);
    int minutes = Integer.parseInt(times[1]);
    int seconds = Integer.parseInt(times[2]);
    int totalSeconds = (+hours) * 60 * 60 + (+minutes) * 60 + (+seconds);

    return totalSeconds;
}​