Did I have to redeclare buttons and edittext in subclass in Android Java?

Question

Suppose I have a superclass A which contains EditText and a button having protected access modifier.
The button on press sets the text to Edittext (say Everytime the button is pressed "a" is inserted into Edittext.
Suppose I want to extend this class and in subclass their is nothing which I declared. Suppose the content of subclass contains same Edittext and button having same function. Did I have to rewrite the code for button press or did it just inherit from superclass.
Please provide some exple with code.

Answer 1

https://stackoverflow.com/questions/7648924/extending-a-edittext-in-android-what-am-i-doing-wrong