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Exam AND-401 topic 1 question 48 discussion

Actual exam question from AndroidATC's AND-401
Question #: 48
Topic #: 1
[All AND-401 Questions]

Which of the following is NOT true about the SharedPreferences interface?

  • A. The data it saves is persistent even if application is killed.
  • B. It only saves primitive data in key-value pairs.
  • C. Modifications to preferences saved should go through class SharedPreferences.Editor
  • D. It can save any data type in key-value pairs.
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Suggested Answer: D 🗳️
SharedPreferences class is an interface for accessing and modifying preference data returned by getSharedPreferences(String, int). For any particular set of preferences, there is a single instance of this class that all clients share. Modifications to the preferences must go through an SharedPreferences.Editor object to ensure the preference values remain in a consistent state and control when they are committed to storage. Objects that are returned from the various get methods must be treated as immutable by the application.
References:
http://developer.android.com/reference/android/content/SharedPreferences.html
by Mmadi at Dec. 31, 2022, 7:23 p.m.

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Mmadi
1 year, 12 months ago
D. It can save any data type in key-value pairs.
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