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TransitCalculator.java

import java.util.Arrays;
public class TransitCalculator{
  int number_of_days;
  int number_of_rides;
  int age_number;
  String[] days = {"Pay-per-ride", "7-day Unlimited ", "30-day Unlimited "};
  double[] prices = {2.75, 33.00, 127.00};
  double[] reduced_prices = {1.35, 16.50, 63.50};

  public TransitCalculator(int num_days, int num_rides, int age){
    number_of_days = num_days;
    number_of_rides = num_rides;
    age_number = age;
  }


  public double unlimited7Price(){
    int num = 0;
    int rounded_num = 0;
    double price = 0;
    for(int i = 0; i <= 7; i++){
      num = number_of_days + i;
      if(num % 7 == 0){
       rounded_num = num;
      }
    }
    int num_week = rounded_num/7;
    double overall_price = (num_week*prices[1])/number_of_rides;
    double reduced_overall_price = (num_week*reduced_prices[1])/number_of_rides;
    if (age_number < 65){
      price = overall_price;
    }else{
      price = reduced_overall_price;
    }
    return price;
  }

   public double unlimited30Price(){
      int num = 0;
      int rounded_num = 0;
      double price = 0;
      for(int i = 0; i <= 30; i++){
        num = number_of_days + i;
        if(num % 30 == 0){
          rounded_num = num;
        }
      }
      int num_month = rounded_num/30;
      double overall_price = (num_month*prices[2])/number_of_rides;
      double reduced_overall_price = (num_month*reduced_prices[2])/number_of_rides;
      if (age_number < 65){
        price = overall_price;
      }else{
        price = reduced_overall_price;
      }
      return price;
   }

  public double[] getRidePrices(){
    double[] price_ride = new double[3];
    if (age_number < 65){
      price_ride[0] =  prices[0];
      price_ride[1] =  unlimited7Price();
      price_ride[2] =  unlimited30Price();
    }else{
      price_ride[0] =  reduced_prices[0];
      price_ride[1] =  unlimited7Price();
      price_ride[2] =  unlimited30Price();
    }
    return price_ride;
  }

  public String getBestFare(){
    int num = 0;
    for(int i = 1; i < 3; i++){
      if (getRidePrices()[i] < getRidePrices()[num]){
        num = i;
      }
    }
    return "You should get the " + days[num] + " option at " + getRidePrices()[num] + " per ride.";
  }

  

  public static void main(String[] args){
    TransitCalculator transport = new TransitCalculator(26, 54, 30);
    TransitCalculator reducedTransport = new TransitCalculator(26, 54, 65);
    System.out.println(transport.getBestFare());
    System.out.println(reducedTransport.getBestFare());
  }
}