Please use code tags when posting code.

Rather than maintaining all those arrays you should have a class that encapsulates 1 question, its possible answers and the actual answer.

Then create an instance of this class for each question, its options and answer as you read them in. You can store the question objects in an ArrayList so you don't need to worry about how many you are reading in (ArrayLists grow to whatever size you need) and then you can use the Collections shuffle() method to randomise the list.