how to toast a message if editText is empty by clicking button?

Question

i have 2 edit Text in my application, 1 button to add the input numbers in the edit Text and 1 text view to display the result. I would like to put a toast message if my edit te

Answer 1

Add to your click listener check

Toast toast = Toast.makeText(MainActivity.this, "Your Message", Toast.LENGTH_SHORT);
toast.show();