title: Save a record in android application after it has been randomly selected from database
body: <p>I have an Android activity which has a database. Every day when user starts the app and clicked "Today's word", the app will randomly choose a word from database and show its data on a new activity. I know if user restarts the app/ closes the app, the selected word will be changed again. How to deal with this problem? And how to prevent the app from choosing the same word after the day has passed? </p>
  
  <p>Thank you </p>