Codecademy export

TransitCalculator.java

package com.company.com;

import java.util.Arrays;
import java.lang.Math;

public class TransitCalculator {
    int days;
    int rides;
    String[] rideTypes = {"Pay-per-ride", "7-day Unlimited", "30-day Unlimited"};
    double[] ridePrices = {2.75, 33.00, 127.00};

    public TransitCalculator(int daysOnTransit, int individualRides) {
        days = daysOnTransit;
        rides = individualRides;
    }
    public double unlimited7Price() {
        double sevenDayPayment = Math.round(days / 7);
        sevenDayPayment = ((sevenDayPayment * ridePrices[1]) / rides);
        return sevenDayPayment;
    }
    public double[] getRidePrices(){
        double[] pricePerRide = {};

        pricePerRide[0] = ridePrices[0];
        pricePerRide[1] = unlimited7Price();
        pricePerRide[2] = (ridePrices[2] / rides);
        return pricePerRide;
    }
    public String getBestFare(){

        double[] ridePrices = getRidePrices();
        int winningIndex = 0;

        for (int i = 0; i < ridePrices.length; i++) {

            if (ridePrices[i] < ridePrices[winningIndex]) {
                winningIndex = i;
            }
        }
        String bestFare = "You should get the " + rideTypes[winningIndex] + " option at " + ridePrices[winningIndex] + " per ride.";
        return bestFare;
    }
    public static void main(String[] args){
        TransitCalculator person = new TransitCalculator(23, 45);
        System.out.println(person.getBestFare());
    }
}

I think the problem is this :line 22.
double[] pricePerRide = {};
You declared an array with zero element in it.
You cannot change the number of elements once you declare an array.
Instead of that, try this.
double[] pricePerRide = new double[3]; //You should put the numbers of elements here.