Android Exam AND-401 Topic 3 Question 2 Discussion

Actual exam question for Android's AND-401 exam

Question #: 2
Topic #: 3

Consider the following code snippet:

String[] result_columns = new String[]{KEY_ID, COL1, COL2};

Cursor allRows = myDatabase.query(true, DATABASE_TABLE, result_columns,

null,null,null,null,null,null);

Which of the following prints out the values of COL1 column correctly if the result is not empty?

Aif (cursor.moveToFirst()) {do {System.out.println(cursor.getString(1));}while (cursor.moveToNext()); }

Bdo {System.out.println(cursor.getString(0));}while (cursor.moveToNext());

Cif (cursor.moveToFirst()) {do {System.out.println(cursor.getString(0));}while (cursor.moveToNext()); }

Dif (cursor != null) {do {System.out.println(cursor.getString(1));}while (!cursor.isNull()); }

Show Suggested Answer

Suggested Answer: A

by Roxane at Dec 29, 2022, 06:53 PM

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