// Assume 'cursor' is a valid Cursor object int columnIndex = 2; // Index of the target column if (cursor.isNull(columnIndex)) { Log.d(TAG, "Value is null at column " + columnIndex); } else { String value = cursor.getString(columnIndex); Log.d(TAG, "Value at column " + columnIndex + " is " + value); }In the above example, we first retrieve the index of the target column, which is assumed to be 2. We then use the isNull() method to check if the value in the column is null or not. If it is null, we log a message indicating that. Otherwise, we retrieve the value using the getString() method and log its value. The android.database package is a part of the Android SDK, so developers do not need to add any external library or package to use it.