Which call deletes only the username key?

  1. prefs.edit().clear().apply()
  2. prefs.edit().remove("username").apply()
  3. prefs.delete("username")
  4. prefs.remove()
Answer

B) prefs.edit().remove("username").apply()

remove(key) deletes a single entry.

Computer Science MCQ · More Lab: SharedPreferences MCQs · Practise