Keyboards Telegram Bot?

Question

Java

I'm trying to make a telegram bot. I am learning to make a keyboard in chat bots, according to this article https://habr.com/ru/post/418905/
Errors in:

keyboardButtonsRow1.add(new InlineKeyboardButton().setText("Fi4a")<b>.setCallbackData</b>("CallFi4a"));
return new SendMessage().setChatId(<b>chatId</b>).setText("Пример").setReplyMarkup(inlineKeyboardMarkup);

Answer 1

But unfortunately a mistake on a mistake.

The fact that it does not work, but there is an error (exception) and there is "where to dig" is a good sign. It's bad when there are no errors and nothing works.
As for the exception being thrown, it would be nice if you provide an error log (stacktrace) to help you. So, it's hard to say what exactly you have a problem with.