Java 对比时间大小 字符类型

public static boolean contrastTimeSize(String maxTime,String minTime,String dataType){
    SimpleDateFormat format = new SimpleDateFormat(dataType);
    try {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(format.parse(maxTime));

        int planYear = calendar.get(Calendar.YEAR);
        int planMonth = calendar.get(Calendar.MONTH) + 1;

        calendar.setTime(format.parse(minTime));
        int testYear = calendar.get(Calendar.YEAR);
        int testMonth = calendar.get(Calendar.MONTH) + 1;

        double startTime = new BigDecimal(planMonth / (double) 12).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue() + planYear;
        double endTime = new BigDecimal(testMonth / (double) 12).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue() + testYear;
        if(startTime > endTime){
            return false;
        }
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return true;
}