title: How to select a button by default on activity run?
body: <p>I want to include two simple buttons in my activity, for example, &quot;Start&quot; and &quot;End&quot;.
  Now i want &quot;Start&quot; button to be selected by default (with any background color) when i run my activity. How to do that through java in Android studio?
  Note:- i am not talking about radio button's small circle. I am talking about simple button.</p>