构造一组变量的最佳方法是什么？一组变量有一组变量等等？

Question

我正在创建一个计算费率的 Java 程序。费率有一个有高峰的季节，这些高峰有自己的时间和价格。我正在考虑做嵌套 类，但必须有更好的方法，我只是没有考虑它，对吗？

我需要存储的变量：

Rate
    Summer
        peak
            hours
            price
        midpeak
            hours
            price
        off-peak
            hours
            price
    Non-summer
        peak
            hours
            price
        midpeak
            hours
            price
        off-peak
            hours
            price

Answer 1

这里有一个方法：

class BaseRate {
    int hours;
    int price;

    public BaseRate(int hours, int price) {
        this.hours = hours;
        this.price = price;
    }
}

class SeasonalRate {
    BaseRate peakRate;
    BaseRate midPeakRate;
    BaseRate offPeakRate;

    public SeasonalRate(BaseRate peakRate, BaseRate midPeakRate, BaseRate offPeakRate) {
        this.peakRate = peakRate;
        this.midPeakRate = midPeakRate;
        this.offPeakRate = offPeakRate;
    }
}

class AnnualRates {
    SeasonalRate summerRate;
    SeasonalRate winterRate;

    public AnnualRates(SeasonalRate summerRate, SeasonalRate winterRate) {
        this.summerRate = summerRate;
        this.winterRate = winterRate;
    }

    public static void main(String[] args) {
        BaseRate peakWinterRateFor2019 = new BaseRate(1, 3);
        BaseRate midPeakWinterRateFor2019 = new BaseRate(1, 3);
        BaseRate offPeakWinterRateFor2019 = new BaseRate(1, 3);
        BaseRate peakSummerRateFor2019 = new BaseRate(1, 3);
        BaseRate midPeakSummerRateFor2019 = new BaseRate(1, 3);
        BaseRate offPeakSummerRateFor2019 = new BaseRate(1, 3);

        SeasonalRate winterRateFor2019 = new SeasonalRate(peakWinterRateFor2019, midPeakWinterRateFor2019, offPeakWinterRateFor2019);
        SeasonalRate summerRateFor2019 = new SeasonalRate(peakSummerRateFor2019, midPeakSummerRateFor2019, midPeakWinterRateFor2019);

        AnnualRates ratesFor2019 = new AnnualRates(summerRateFor2019, winterRateFor2019);
    }
}