import java.util.Base64;
import java.nio.charset.StandardCharsets;
class Main {
public static void main(String[] args) {
String clientName = "hai_f_desk_app";
String clientSecret = "AL3HDh62XF1ygu6WUqwmgvVkfdzpG_IouFs9NNVEET7QYJNaltvkP4a20lz5CPWwsw==";
String apiKey=Base64.getUrlEncoder().encodeToString(String.format("%s:%s",clientName,clientSecret).getBytes(StandardCharsets.UTF_8));
System.out.println("apiKey(base64 url):");
System.out.println(apiKey);
System.out.println("api key lenth:"+apiKey.length());
System.out.println("Hello world!");
}
}