telegram-bot

import org.telegram.telegrambots.meta.TelegramBotsApi;

import org.telegram.telegrambots.meta.exceptions.TelegramApiException;

import org.telegram.telegrambots.updatesreceivers.DefaultBotSession;

public class Main {

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

       TelegramBotsApi telegramBotsApi = new TelegramBotsApi(DefaultBotSession.class);

       telegramBotsApi.registerBot(new Bot());

   }

}

import org.telegram.telegrambots.bots.TelegramLongPollingBot;

import org.telegram.telegrambots.meta.api.methods.send.SendMessage;

import org.telegram.telegrambots.meta.api.objects.Update;

import org.telegram.telegrambots.meta.exceptions.TelegramApiException;

public class Bot extends TelegramLongPollingBot {

   @Override

   public void onUpdateReceived(Update update) {

       String message = update.getMessage().getText();

       sendMsg(update.getMessage().getChatId().toString(), message);

   }

   public synchronized void sendMsg(String chatId, String s) {

       SendMessage sendMessage = new SendMessage();

       sendMessage.enableMarkdown(true);

       sendMessage.setChatId(chatId);

       sendMessage.setText(s);

       try {

           execute(sendMessage);

       } catch (TelegramApiException e) {

           e.printStackTrace();

       }

   }

   @Override

   public String getBotUsername() {

       return "Бот";

   }

   @Override

   public String getBotToken() {

       return "";

   }

}