Android Code Example: Receiving text messages (SMS) (from https://www.codota.com/android/scenarios/52fcbdd1da0aa9628b386c97/receiving-text-messages-sms-?tag=dragonfly)

ReceivingTextMessages.java

 private void replyMessage(Context context, SmsMessage msg) {
            SmsManager sms = SmsManager.getDefault();
            String message = msg.getMessageBody();
            sms.sendTextMessage(msg.getOriginatingAddress(), null, message, null, null);
        } 
    }