title: How to force close the app when using multiple activity
body: <p>How to quit the app or force close the app when multiple activity running in background. I tried to give <code>system.exit(0)</code>, but this will works only having single activity. In my app i have 3 activity when i tried <code>system.exit</code> it kills that particular activity and go back to previous activity. please guide me to solve this.. </p>