title: How to show pre checked checkboxes in android
body: <p>I have a problem<br>
  How do I show prechecked checkboxes in my android application.<br>
  Suppose there are 4 check boxes and I want to show 2 of them checked from the beginning based on a value 0 or 1 assigned to that display variable.<br>
  I am a very naive android developer.</p>