title: putStringSet() SharedPreferences
body: <p>I have three inputs that the user puts and I need to save this data in his phone, I first thought about saving as an array, so I could have an Id for when I wanted it back, but I searched and everybody uses this <a href="https://developer.android.com/reference/android/content/SharedPreferences.Editor.html#putStringSet(java.lang.String,%20java.util.Set%3Cjava.lang.String%3E)" rel="nofollow noreferrer">PutStringSet</a>, I did some research but didn`t find anyone that could help me on how to use that with SharedPreferences.
  Thanks...</p>