Как отправить http запрос из android приложения?

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

public class HttpExample {

    public static void main(String[] args) {
        try {
            // Создание URL объекта
            URL url = new URL("http://example.com/api");
            
            // Открытие соединения
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            
            // Установка метода запроса
            connection.setRequestMethod("GET");
            
            // Получение ответного кода
            int responseCode = connection.getResponseCode();
            
            // Чтение данных из входного потока
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuilder response = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();
            
            // Закрытие соединения
            connection.disconnect();
            
            // Обработка данных
            System.out.println("Response Code: " + responseCode);
            System.out.println("Response Data: " + response.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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<uses-permission android:name="android.permission.INTERNET" />

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implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'

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import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Url;

public interface ApiService {
    @GET
    Call<ResponseBody> getData(@Url String url);
}

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import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;

public class MainActivity extends AppCompatActivity {

    private static final String BASE_URL = "http://example.com/api";
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .build();

        ApiService apiService = retrofit.create(ApiService.class);

        Call<ResponseBody> call = apiService.getData(BASE_URL);

        call.enqueue(new Callback<ResponseBody>() {
            @Override
            public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                if (response.isSuccessful()) {
                    try {
                        String data = response.body().string();
                        // Обработка данных
                        Log.d("Response Data", data);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                } else {
                    Log.e("Response Error", response.message());
                }
            }

            @Override
            public void onFailure(Call<ResponseBody> call, Throwable t) {
                Log.e("Network Error", t.getMessage());
            }
        });
    }
}