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Conversor.java
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Conversor.java
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import com.google.gson.*;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
class Conversor {
public double conversorDeMoeda(int escolha, double qnt) throws IOException, InterruptedException {
String apiKey = "75dd0284c48da5254d9048a7";
String urlStr = "https://v6.exchangerate-api.com/v6/" + apiKey + "/latest/BRL";
try {
URL url = new URL(urlStr);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
int responseCode = connection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
JsonParser parser = new JsonParser();
JsonElement root = parser.parse(response.toString());
JsonObject jsonObj = root.getAsJsonObject();
JsonObject conversionRates = jsonObj.getAsJsonObject("conversion_rates");
switch (escolha){
case 1:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 USD x 1 BRL "+ conversionRates.get("USD").getAsDouble());
double resultado1 = conversionRates.get("USD").getAsDouble() * qnt;
return resultado1;
case 2:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 EUR x 1 BRL "+ conversionRates.get("EUR").getAsDouble());
double resultado2 = conversionRates.get("EUR").getAsDouble() * qnt;
return resultado2;
case 3:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 KWD x 1 BRL "+ conversionRates.get("KWD").getAsDouble());
double resultado3 = conversionRates.get("KWD").getAsDouble() * qnt;
return resultado3;
case 4:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 ARS x 1 BRL "+ conversionRates.get("ARS").getAsDouble());
double resultado4 = conversionRates.get("ARS").getAsDouble() * qnt;
return resultado4;
case 5:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 JPY x 1 BRL "+ conversionRates.get("JPY").getAsDouble());
double resultado5 = conversionRates.get("JPY").getAsDouble() * qnt;
return resultado5;
case 6:
System.out.println("Quantidade a ser convertida: "+ qnt);
System.out.println("Valor de 1 CNY x 1 BRL "+ conversionRates.get("CNY").getAsDouble());
double resultado6 = conversionRates.get("CNY").getAsDouble() * qnt;
return resultado6;
}
} else {
System.out.println("Erro ao obter a resposta da API. Código de resposta: " + responseCode);
}
} catch (IOException e) {
e.printStackTrace();
}
return 0;
}
}