title: Store and retrieve arrayList from internal memory?
body: <p>I'm building a home replacement app. I need to store the ArrayList with the apps the user picked to show on the launcher in the internal memory. I mean the array mustn't be deleted when the app is closed.</p>
  
  <p>I'm very close to finishing the app and I don't think I'll work a lot more on Java, I'm not a programmer so I just want the easiest way to do it. How can I store and retrieve an ArrayList in the internal memory?</p>