Final answer:
The correct statement to get the string stored in an EditText widget named usernameEditText is option A: String text = usernameEditText.getText().toString();
Step-by-step explanation:
The correct statement to get the string stored in an EditText widget named usernameEditText is option A: String text = usernameEditText.getText().toString();
This statement calls the getText() method on the usernameEditText object to retrieve the input text, and then uses the toString() method to convert it to a string. The resulting string is stored in the variable text.
Option B is incorrect because there is no getString() method for EditText widgets. Option C is also incorrect as there is no value() method. Option D is also incorrect as there is no getTextValue() method.