API key switcher

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class ApiSwitch {
    private static final String[] apiKeys = {"API_KEY_1", "API_KEY_2", "API_KEY_3"};
    private static int currentKey = 0;

    public static void main(String[] args) {
        try {
            String apiUrl = "https://api.example.com/data";
            String responseData = fetchData(apiUrl);
            System.out.println("Response: " + responseData);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String fetchData(String apiUrl) throws IOException {
        String apiKey = apiKeys[currentKey];
        URL url = new URL(apiUrl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("Authorization", "Bearer " + apiKey);
        connection.setRequestMethod("GET");

        int responseCode = connection.getResponseCode();

        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;

            while ((line = reader.readLine()) != null) {
                response.append(line);
            }

            reader.close();
            return response.toString();
        } else {
            System.out.println("Request failed with API key: " + apiKey);
            currentKey = (currentKey + 1) % apiKeys.length;
            return fetchData(apiUrl);
        }
    }
}