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64 changes: 38 additions & 26 deletions TravelCostCalculator.java
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Original file line number Diff line number Diff line change
@@ -1,3 +1,6 @@
// EG/2020/3941
// Gawesh L.A.M.S

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
Expand All @@ -6,70 +9,79 @@
import java.util.Map;

public class TravelCostCalculator {
static Map<String, Double> a = new HashMap<>();
static Map<String, Double> b = new HashMap<>();
static Map<String, Double> c = new HashMap<>();
static Map<String, Double> hotelRatesList = new HashMap<>();
static Map<String, Double> exchangeRatesList = new HashMap<>();
static Map<String, Double> flightCostsList = new HashMap<>();

static void l1(String file) throws IOException {
static void setHotelRates(String file) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(file));
String i;

while ((i = reader.readLine()) != null) {
String[] p = i.split(",");
a.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
hotelRatesList.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
}

}

static void l2(String file) throws IOException {
static void setExchangeRates(String file) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(file));
String i;

while ((i = reader.readLine()) != null) {
String[] p = i.split(",");
b.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
exchangeRatesList.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
}

}

static void l3(String file) throws IOException {
static void setFlightCosts(String file) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(file));
String i;

while ((i = reader.readLine()) != null) {
String[] p = i.split(",");
c.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
flightCostsList.put(p[0].toUpperCase(), Double.parseDouble(p[1]));
}

}

public static void main(String[] args) {
try {
l1("data/hotel_rates.csv");
l2("data/exchange_rates.csv");
l3("data/flight_costs.csv");
setHotelRates("data/hotel_rates.csv");
setExchangeRates("data/exchange_rates.csv");
setFlightCosts("data/flight_costs.csv");

BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

System.out.print("Enter your destination: ");
String destination = reader.readLine().toUpperCase();

double flight_cost = c.getOrDefault(destination, 0.0);
double hotel_cost = a.getOrDefault(destination, 0.0);
double flightCost = flightCostsList.getOrDefault(destination, 0.0);
double hotelCost = hotelRatesList.getOrDefault(destination, 0.0);

System.out.print("Enter your stay duration in days: ");
int stay_duration = Integer.parseInt(reader.readLine());
hotel_cost *= stay_duration;
int stayDuration = Integer.parseInt(reader.readLine());
hotelCost *= stayDuration;

double total_cost_usd = flight_cost + hotel_cost;
double totalCostUsd = flightCost + hotelCost;

System.out.printf("Flight cost: USD %.2f\n", flight_cost);
System.out.printf("Hotel cost (%d days): USD %.2f\n", stay_duration, hotel_cost);
System.out.printf("Total: USD %.2f\n", total_cost_usd);
System.out.printf("Flight cost: USD %.2f\n", flightCost);
System.out.printf("Hotel cost (%d days): USD %.2f\n", stayDuration, hotelCost);
System.out.printf("Total: USD %.2f\n", totalCostUsd);

String[] available_currencies = b.keySet().toArray(new String[0]);
System.out.print("Select your currency for final price estimation(" + String.join(", ", available_currencies) + "): ");
String selected_currency = reader.readLine();
String[] availableCurrencies = exchangeRatesList.keySet().toArray(new String[0]);
System.out.print("Select your currency for final price estimation(" +
String.join(", ", availableCurrencies) + "): ");
String selectedCurrency = reader.readLine();

double final_price_local_currency = total_cost_usd * b.get(selected_currency);
double finalPriceLocalCurrency = totalCostUsd * exchangeRatesList.get(selectedCurrency);

System.out.printf("Total in %s: %.2f\n", selected_currency, final_price_local_currency);
} catch (IOException e) {
System.out.printf("Total in %s: %.2f\n", selectedCurrency, finalPriceLocalCurrency);
}
catch (IOException e) {
e.printStackTrace();
}
}
}