Android add placeholder text to EditText

Question

How can I add a placeholder text to EditText in the class that isn\'t in the XML?

I have the following EditText in my code which will be sh

Answer 1

This how to make input password that has hint which not converted to * !!.

On XML :

android:inputType="textPassword"
android:gravity="center"
android:ellipsize="start"
android:hint="Input Password !."

thanks to : mango and rjrjr for the insight :D.