Computer Science question

Test Preparation AP Test Preparation
1

<p>If I were to do this
Positron[][] hello = new Positron[9][9]</p>

<p>and then in the positron class have a constructor that assigns a boolean matrix to all false, and then an int value, would they be initiated then. I think so but I just want to check. Basically would I get a null pointer exception if I try to call one of the Positron methods. This is for a Sodoku program that I am writing because I am bored. It might not be terribly efficient, but it will solve the puzzle, if possible. I am basically doing it to test wether the puzzles in my local paper can be solved with less information, and how many ways they can be solved.</p>

<p>Does anyone else think the fish case study is incredibly boring. We are suppose to be reviewing that, but its not really happening. We are reading chapter 5 and are almost done, but I just think that it is really pointless.</p>

2

<p>The context is pointless, but the general idea is good. The simulation helped me develop the architecture for the simulation I used in my entry for the siemens westinghouse competition.</p>

3

<p>mattd1688: Just wondering but what book are you studying from? Are you in AP CS A or AB?</p>

4

<p>I studied from 41 weblessons that were in a zip file that my teacher gave me last year. I finished up to 30 last year, which is basically the A exam. Me and this other kid did the last 11 this year. We used the java blue book java methods or something last year and basically it was a waste of time. Thats how we learned graphics but it was pretty pointless. I am in AB now. This is going to be a Soduko (number matrix game). I was going to finish it today, but didnt feel like it.</p>