Get All airports with IATA codes retrieving EasyPNR Web service

EasyPNRExample.java

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

public class EasyPNRExample {

    /**
     * https://www.easypnr.com/webservice
     * @param args
     * @throws Exception
     */

    public static void main(String[] args) throws Exception {

        URL url = new URL("https://api.easypnr.com/v4/airports");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");
        conn.setRequestProperty("X-Api-Key", "yourkey"); //get your own key in www.easypnr.com

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
        String apiOutput = br.readLine();
        System.out.println(apiOutput);
        conn.disconnect();
    }
}