AP Computer Programming Practice Exam

I am in Advanced Placement Computer Programming 12, a High school Java Class. My teacher is actually the AIT teacher, and the visual basic teacher, and does not seem to know much about Java since he cannot answer most of my questions. I was given a textbook and told to learn, because the teacher teaches us and the normal Computer Programming students (Visual Basic) at the same time, and they are more important. However, we do pass in assignments to him.
He has been marking me down for forgetting the date in the comments, for forgetting to name my variables with a type (double dblVarName, instead of my way, varName), not enough whitespace, etc. Is this even allowed? It is not in the textbook. I should also mention I have been programming for 4 years and I know 16 languages including C++, but my specialty is PHP, so I code WAY differently then him, and lose points because of my style.
All of my programs to work EXACTLY as the book shows they should. I do an exam for him and the official college level exam, so i don't know what to do. I should also mention that half of the people have failed HIS exam in the last 4 years, and all of them except 2 have failed the College Level Exam. My Physics teacher who is a programmer told me to download the practice exam for the College Level one, so I was wondering where to find it, any ideas?

Guardian-Mage wrote:
He has been marking me down for forgetting the date in the comments, for forgetting to name my variables with a type (double dblVarName, instead of my way, varName), not enough whitespace, etc. Is this even allowed?Obviously it is... quit complaining and do it right. You're going to have to please someone with your coding style no matter what you do.
It is not in the textbook. I should also mention I have been programming for 4 years...Congratulations, before I went to college I had programmed for at least that long and so had most of the people I was in college with.
and I know 16 languages including C++, but my specialty is PHP, ...in something like 8 different languages not including various dialects of assemblers... and that was back in the day before dinosaurs roamed the earth (before the internet and these things they call scripting languages).
so I code WAY differently then him, and lose points because of my style. Get over it and learn to do it the way the shop wants. It just sounds in this case both of you have a rather large case of themselves. You are going to be required to accept some standards in your programming career--even in college there is some discretionary points given for style--yes, white space, variable naming, the number of lines in your code, readability and etc. (I'm not saying he has the end all of styles or what he is requiring is correct, but he is the one you have to please right now with your style--it rather foolish not to--he's the one with the grade book.)
Getting a program to work it only part of the desired result, it's about time you learned that. You have to be able to cut easily readable, easily maintainable, highly cohesive, correct code. Yes, pretty print actually counts in the real world too. Decide to do it right now and you'll be a lot better off later on.
When you get to college you're going to find one thing: everyone is going to be the top of their class... AP placement... programmed for X years... knows XX languages... etc. You're finding that just getting it to work is not the end all of the problem. DO IT RIGHT, and learn what your instructor is trying to teach you... get some style that you can be proud to show in a job interview instead of what you are doing now.
BTW: I had a very similar attitude going into college, and shock of my life... everyone was the top of their HS programming classes. This was driving home to me in my Senior year in a Systems Programming class that was taught by the CS Department Chair. He stood up in front of the class and faced us very solumn faced and sternly asked: "Who here thinks they are gifted?"
I raised my hand and he looked at the others and siad: "What's the matter with the rest of you? You are the top 2%, if you're not gifted who is?"

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Timing CLD practice exams

Hi,
I wanted to bring up this topic for those who are preparing for taking the CLD.
As you know there is a four hour limit for taking the exam. While preparing for the exam, using all the materials, webcast, and the certification discussion board, it is important ... , no critical, to clear your schedule and time yourself for a four hour exam. Twice.
Many developers get caught in the time crunch, both in their daily activities and in the test. Putting yourself in the position of having to face a hard deadline for completing the exam is a great wake up call. You don't want that call to be during the actual exam.
Timing your practice exams is a great way to experience the psychological pressures you will face during the four hours.
There is a wide spectrum of programmers that take the CLD, experienced pros, those who use it once or twice a week at work, advanced beginners, and all other experience levels. Preparing with a strict time limit gives all the broad spectrum of candidates the opportunity to see where their personal methods support or hinder the effort to complete in four hours.
In general, take no more than thirty minutes to read the specification, understand the specification, and plan your design.
Again, generally speaking, the last thirty minutes should not be used as a "last ditch" effort to start a new piece of functionality or race to a last minute addition. If a bug is introduced in this last half hour, the damage done to overall functionality could be much worse than the potential gain. One good use of the last thirty minutes is to continue testing integrated modules/SubVI's, to fix small discrepancies , to make one more verification that what you have already programmed is working correctly. One of my clients used to tell me "test, test, Test !"
Of course, it is impossible to give directions that will meet all individual methods. This is why taking a practice exam under strict time limits is a HUGE suggested best practice. You get to see first hand how your strategies and test taking methods fit the four hour time limit. You can plan and prepare your solution and methods, but until you time it firsthand, you are only measuring your knowledge of the methods. In most cases, nothing teaches faster than timing your sample exam and learning from your own mistakes.
If you are struggling with both implementation and timing, complete one practice exam without time, then take it again , timed, with just three and a half hours limit as you already know the specification.
One time saver is to document and label as you program. While you are in a section of code, document what that case, SubVI, or algorithm is doing. Right at the point of conception it is easy to jot down a one line description. Waiting until the end and then documenting all the work you have done is not as efficient as documenting "in the moment". You might be testing in the last thirty minutes and run out of time to document the complete application. Also, when you are working with already documented code, you are giving yourself a road map as you integrate modules or add functionality to the application. Try this while you are taking the practice exam.
I hope you find this advice helpful and something to think about, but more importantly I hope I have convinced you to take some practice exams with strict time limits. Although I have touched on a few topics, the focus here is to promote the timing your CLD practice exams in preparing for the CLD.
Mark Ramsdale
Project Manager and CLD
Customer Certification and Training at National Instruments

Jeff·Þ·Bohrer wrote:
RDarn the mobile interface.
Tim, I hear you. What do you consider to be a "normal project"?
PS My CLD-R is at 8:00am tomorrow.
"Normal" = project for actual work
Good luck starting in about 13 minutes!
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines

Programming practice issues

hi,
i'm now working on a project that requires me to create an UI with Swing...but before i start to actually code anything...i have a small question...it is sort of a programming practice/convention question...
my project has 2 major interfaces (or i should say 2 major "main windows" kind of thing)...the concept is...when the application runs...it first pops up a simple dialog box (could be a simple JFrame with 2 buttons)...the 2 buttons decide which of the 2 "main windows" you want to launch...let's say the 2 "main windows" are called interfaceA.java and interfaceB.java...
my thinking is...i should create a file called launcher.java which contains just a JFrame with the 2 necessary buttons...and by clicking 1 of the buttons would launch the indicated "main window" (interfaceA or interfaceB)...
i'm not exactly sure whether this approach is correct...because for most cases...i'd probably be writing a single "main window" and all other features like dialog boxes, menus, buttons, etc will be built on top of that main window...so the "centre" is the 1 "main window"...however...for my case...it seems to me that there'd no longer be any "centre"...the "centre" now seems to be just that simple JFrame and everything is building on top or spreading out of that JFrame...
is this a correct approach...?
thank you very much!

Are these two "major interfaces" connected to each
other at all? Will the user be able to switch from
one to the other, and is he at all likely to do so?
If not, then what you have is two applications, and
each should have its own entry point. They may just
be two shortcuts to the same program but with
different command-line arguments, but the user
doesn't need to be aware of that. Having them share
the same entry point is like setting the user up for
an ambush ("But what program did you really
want to run?").
Is the user much more likely to choose one interface
over the other (e.g., "Play Game" or "Change
Settings")? If so, then start the more likely one
while providing the means to suspend or quit it and
start the other.
Finally, if there's no way for you to decide
which interface should be the default, maybe the user
can. In that case, go ahead and show that dialog the
first time your app runs, but put a "Set as default"
checkbox on it.
</rant>hi uncle_alice,
thanks for your reply...you've definitely mentioned something meaningful...but my situation is a little bit different from the scenarios you talked about...
maybe i should have been a bit clearer when i first posted my question...in fact...there're 2 "major interfaces" in my project as i've said...and i would say that both interfaces are of almost equal likeliness to be used...
here is a scenario the decribes my project...there's a computer in a kindergarten library that would be used by either a 4-year-old kid or an adult kindergarten teacher to search for books...the interface will be different for the 2 kinds of user...for the kid one...it would be an interface with some graphics and large buttons...for the adult one...it would just be an ordinary book searching utility...
and now...what i want to do is to have a "launcher" that let the user to choose between the "kid interface" and the "adult interface"...there would be chances that a teacher would like to switch to the "kid interface" and browse around...what i planned to do is to have a "log out" button in both interfaces such that at any time if "log out" is clicked...the current interface will be dismissed and the "launcher" pops back again...

Practice Exam question

hey, am soon appearing in CRM100 exam ,has anybody got any practice exam questions, plz forward it to me at   [email protected]     or in any info will also work. thnx

public class TriangleTester {
     public static void main(String[] args){
          //build first triangle with first constructor
          Triangle tri1 = new Triangle(5,5,5);
          Triangle tri2 = new Triangle(10);     //equilateral
          Triangle tri3 = new Triangle();     //your 3,4,5
          System.out.println(tri1.getPerimeter()+" is tri1's perimeter");
          System.out.println(tri1.getSide(1)+" is tri1's side 1");
          System.out.println(tri1.getSide(2)+" is tri1's side 2");
          System.out.println(tri1.getSide(3)+" is tri1's side 3");
          System.out.println(tri2.getPerimeter()+" is tri1's perimeter");
          System.out.println(tri2.getSide(1)+" is tri2's side 1");
          System.out.println(tri2.getSide(2)+" is tri2's side 2");
          System.out.println(tri2.getSide(3)+" is tri2's side 3");
          System.out.println(tri3.getPerimeter()+" is tri1's perimeter");
          System.out.println(tri3.getSide(1)+" is tri3's side 1");
          System.out.println(tri3.getSide(2)+" is tri3's side 2");
          System.out.println(tri3.getSide(3)+" is tri3's side 3");
}This should test your program. make sure it is in the same project as the triangle class

I downloaded a TV/computer program both as an mp3 (audio) and mp4 (A&V). But the download did not appear in the download drop-down or in itunes. Does that mean I cannot burn that mp3 or mp4 to a CD or DVD?

I download a TV/computer program both as an mp3 (audio) and as a mp4 (A&V) I could play them directly using the URLs but neither appeared in the download dropdown or in i tunes. Does that mean that these files cannot be burned to a CD or DVD?

I download a TV/computer program both as an mp3 (audio) and as a mp4 (A&V) I could play them directly using the URLs but neither appeared in the download dropdown or in i tunes. Does that mean that these files cannot be burned to a CD or DVD?

How do i sell a macbook using Apple's refurbished computer program.

I have an intel core duo MacBook with 2GB of ram and a 120GB hard drive. (it also has a superdrive).
How do I sell this on Apple's refurbished computer program and how much do you think that I would get for this computer.
Thanks.
MACBOOK Mac OS X (10.4.7)

I've sold one Macbook and two minis on ebay with no problem. I always use Paypal and only ship to a Paypal verified address. On each sale I got just about what I paid for the macs minus Paypals cut. Selling to a live person for cash may sound good but you're letting someone know you have an expensive laptop at your home and that might bring the wrong person. I have sold on eBay for several years (feedback 300+) and have never been scammed. People try of course, you always get the emails asking where you are and can they come by. Or you get the offer to buy your laptop for $500 more than it's worth IF you send them the laptop via their fedex account and they pay on receipt. NOT! If you sell on eBay use Paypal and ship to verified address sellers are covered too for problems with sales. Good luck in selling your Mac you should get a good price.
MacBook, C2.0 duo, black Mac OS X (10.4.7) 120 gb hd, 2 gb ram, 250 gb ext drive, 5g ipod, 2g ipod

Finished taking Sprinkler CLD Practice Exam

I am planning on taking my CLD this coming week, and just finished taking this practice exam. Since I studied the car wash and ATM solutions I decided to go for the Sprinkler practie exam. The "Sprinkler CLD.zip" file is the results of 4 dedicated hours of my Saturday.
I ran the VI analyzer on all VIs and CTLs and I'm not impressed with myself. Could somebody tell me how they think I would score?
I looked at the solution for the Sprinkler.vi and it's clear that my approach is nothing like the solution from NI. This could be a good or a very bad thing.
It appears quick comments could mean alot if the graders depend heavily on the VI Analyzer. It appears that I should have at least two comments in each VI, and not only have the documentation section filled in the VI but the same for controls.
It's clear that I missed some wires when I resized my case select boxes.
After finishing the exam and then looking back i see there is a possible lock out condition on initialization that would prevent the VI from reading the CSV file. I shouldn't have created a "READ CSV" State. If i would have placed the "READ CSV FILE" inside the "Power Up Configuration" state there would be no issues. I should have restarted labview in my last hour. If the VI starts up with the Water Pressure above 50% and No Rain then the CSV file is read and there is no problem. This would have been an obvious mistake had I restarted labview.
I realize that I missed some of the specifications. For example if it starts raining during a sequence it is suppose to restart the sequence, not pause it.
There are few comments in the code. I usually add many comments to my code, but this is my first time using a simple state engine.
At work I have a large infrastructure already in place complete with error handling and task management. I am also use to working on multiple monitors. During the test I only used one. Even if I didn’t pass this practice exam at least having a dry run outside my normal work condition was very good practice.
I spent time practicing earlier and can build the Timer.VI in about 8 minutes. A functional global timer seems to be a common theme in the practice exams.
Does anybody have any ideas or suggestions?
Do you think I would have passed the CLD exam with this test?
Comments?
Regards,
Attachments:
VI Analyzer Results.zip ‏4 KB
Sprinkler CLD.zip ‏377 KB

There are a lot of good things in your code, you are nearly there. I haven't run your code, so this is more style and documentation comments.
If I were you, I would concentrate on the following:
Wire Error through all your subVI's put your subvi code in an error/no error case structure. If you had done that, you didn't need the flat sequence structure in your code.
You haven't even wired error to the subvi's with error terminals, this will cost you points.
Label any constants on the block diagram.
Brief description of Algorithm on each VI block diagram.
You could have avoided using local variables, for example Run Selector as this control is available in the cluster. So just a unbundle by name would have given you the value of that control. If you do use them, then make sure you state why (for example efficiency etc.) in a block diagram comment.
Some subVis are missing VI documentation, this wont be taken lightly.
Using default value when unwired (for your while loop stop) is not recommended. This was specifically discussed during a CLD preparation class I attended not so long ago.
While icons are pretty, I wouldn't waste time trying to find glyphs for your subvi's just consistent text based icon scheme is perfectly acceptable. You can do this if you do have extra time, it wont fetch your extra points though.
LabVIEW 2012 has sub diagram labels, you can enable this by default in Tools>>Options, adding comments in each of the cases is recommended.
The main thing is time management and make sure you read other posts/blogs on CLD. I would also recommend quick drop, if you haven't started using this it may not be a good idea to do so now for your exam next week. But in general it is very useful and saves time.
Hope this helps.
Beginner? Try LabVIEW Basics
Sharing bits of code? Try Snippets or LAVA Code Capture Tool
Have you tried Quick Drop?, Visit QD Community.

Best Programming Practice for CompareTo

Hi, I am currently writing a small program that deals with an array of objects, where some of the objects can be null. I want to sort the array by a variable of the objects, so I implement compareTo(). My problem is that since some of the objects in the array can be null, when I call Arrays.sort() I get a NullPointerException.
My question is, which is better programming practice:
1. modify the program to make a new array containing only the non-null objects, then sort that.
2. decide what to do with non-null objects, e.g. return -1 in the compareTo() so that the array is sorted with the nulls at the end.
3. something else??
Thanks for your time.

I have an array that represents a timetable. The objects in the array are classes, so if there is no class at a particular time slot then the object is null. I then want to sort the classes by their average attendance and generate a report, so this means I don't want the null objects after sorting.
So far my code is:
    public int compareTo(FitnessClass other) {
                 double thisAverageAttendance = this.getAverageAttendance();
             double otherAverageAttendance = other.getAverageAttendance();
             if(thisAverageAttendance < otherAverageAttendance){
                  return 1;
             else if(thisAverageAttendance == otherAverageAttendance){
                  return 0;
             else
                  return -1;
    }And the array sorting is done by:
     public FitnessClass[] getSortedClassList(){
               //Create an array of all the non-null fitness classes.
          FitnessClass [] nonNulls = new FitnessClass[totalClasses];
          int i = 0;
          for(int index = 0; index < MAX_CLASSES; index++){
               if(classList[index] != null){
                    nonNulls[i] = classList[index];
                    i++;
               //Sort the array by average attendance, making use of the compareTo method from FitnessClass.
          Arrays.sort(nonNulls);
          return nonNulls;
     }And basically my question is, would this be considered to be acceptable programming practice, i.e. creating another array to get rid of the null objects? Or would I be better handling null objects in my compareTo method such that the resulting array would have all of the nulls at the end, then when it comes to creating my report I can just use the objects that are non-null.

What is the best practice exam for 70-462 SQL 2012 DB Admin. exam?

Hi All,
I've completed the 70-462 exam prep guide from Microsoft press, i.e., I've read the book twice and practiced everything I could on my lab network (short of AlwaysOn and Clustering), including all the review questions and practice sections. Now I need
a practice exam and I'm wondering what success test-takers would suggest.
I saw Transcender's practice exam for 70-461 and it was less than what I expected. There were questions that didn't belong there and I don't want to waste my money on a practice exam that has a bunch of "filler" questions. It was the
first Transcender practice exam I've ever seen.
Thanks for any advice you can provide! I expect to take the exam in about 3 weeks.
Eric B.

Seriously, though, I've been studying this guide for nearly 6 months, don't have the money to re-test over and over, and would rather pay for a practice test than pay for the exam itself more than once.
Hi Eric,
In addition to Kalman’s post, based on my research, you can take a practice test for 70-462 from below link. Also, as is suggested in this
article, you can buy a practice test for Exam 70-462 from Kaplan SelfTest and MeasureUp.
http://www.accelerated-ideas.com/free-70462-practice-test.aspx#.VGRCzf6KCM8
Besides, about such issues, for quick and accurate response, I would like to recommend that you ask the question in the Learning forums at
https://social.technet.microsoft.com/Forums/en-US/home?forum=CertGeneral . It is appropriate and more experts will assist you.
Thanks,
Lydia Zhang

Not a computer programer

hi
my lazy buddy wanted me to do this for him well hes my nephew
1.     Variable Naming Conventions. Explain whether each of the following is a valid variable name.
a.     number
b.     private
c.     8ball
d.     firstname
e.     Last name
f.     #n
g.     Class_total
h.
Total_number_of_students_answering_the_survey_by_telephone
i.     First&last_name
j.     Grade12
if that even makes sence can some person who knows what he or she is doing help me out

I find it very difficult to believe that the student has a homework assignment consisting of looking something up on the internet, especially if it's about the syntactical details of a computer language he's not actually studying.
And even if it were his assignment...that's still no reason not to do it himself.
Anyway, in computer programming, spelling mistakes KILL. So that's why we make fun of your spelling mistakes. It's better that you learn here than when your nuclear reactor control program fails.

The letters and numbers are not forming properly, do I have an compatibility issue? Is there an adjustment for this? My computer programs and explorer are ok.

If i move the curser over the letters or numbers they snap up bright. In about 30 seconds they go back to the blurry state. This only happens on Firefox. not explorer or my regular computer programs.

Hello,
First you have two Shockwave Flash and Adobe Shockwave for Director Netscape installed in your computer:
*Shockwave Flash 12.0 r0
*Shockwave Flash 11.8 r800
*Adobe PDF Plug-In For Firefox and Netscape 11.0.06
*Adobe Shockwave for Director Netscape plug-in, version 11.5
So, try disable the hardwareacceleration:
Try disabling graphics hardware acceleration. Since this feature was added to Firefox, it has gradually improved, but there still are a few glitches.
You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).
Then perform these steps:
*Click the orange Firefox button at the top left, then select the "Options" button, or, if there is no Firefox button at the top, go to Tools > Options.
*In the Firefox options window click the ''Advanced'' tab, then select "General".
*In the settings list, you should find the ''Use hardware acceleration when available'' checkbox. Uncheck this checkbox.
*Now, restart Firefox and see if the problems persist.
Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:
* [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]]
* [[Upgrade your graphics drivers to use hardware acceleration and WebGL]]
Also:
*[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in safe mode]
*[http://www.mozilla.org/en-US/plugincheck/ Plugin check]
*[https://support.mozilla.org/en-US/kb/remove-recent-browsing-search-and-download-history Clear recent history]
*[https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem Create a screenshot of the problem]

Practice exam for 1Z0-146

Hi,
I was actually looking out for some good practice exams before i gave the actual 1Z0-146. It will be of great help if anyone can guide me about it.
Thanks.

user8775737 wrote:
Hi,
I was actually looking out for some good practice exams before i gave the actual 1Z0-146. It will be of great help if anyone can guide me about it.
Thanks.As you probably noticed the authorized exam provider (Kaplan IT trading as Transcender and SelfTestSoftware) do not currently appear to provide a test for 1z0-146
Most, if not all, practice exams you will see by searching on the web are unauthorised training material:
See: [http://blogs.oracle.com/certification/2009/05/the_route_you_choose.html]
Certguard will show that these are typically braindump websites [http://www.certguard.com] .... really you should only consider sites that are guarenteed non braindump.
There are a few sample questions (10) with the exam topics (I call these the beta exam rejects).
Basically you are your own with this. But at east by the time you are taking 1z0-146 you will have taken and passed 2 certiifcation exams at least anyway.
Rgds -bigdelboy.

ORACLE 10G IZO 042 ADMIN 1 PRACTICE EXAMS

I'm in seach of practice exams for IZO 042 exam. Can anybody help me out.
My e-mail. [email protected]

Yep, Google is still up.
http://www.google.com/

Recommendations for SCJP 6 practice exams

I everyone, I am new to this forum but I have gotten a lot of help from this forum so far. This is my first post. And please excuse me and direct me in the right direction if someone else has already asked and gotten an answer for this questions.
I am taking the SCJP 6 this AUG 4. I wanted to know what practice exam service shall I use (other than the two exams provided by SUN) if I want to get a taste of the real exam. I know there are many sites that provide practice exam packages, but I am afraid they might not be similar to how the actual SCJP 6 exam might look like. Please tell me your recommendations on what sites best depict the real exam scenarios.

Thank you for your reply, I will check out your recommendations, it certainly helps. But I would also like a recommendation for a practice exam service that I could subscribe to, meaning a portal that will provide me with many practice questions and I dont have to worry about whether they are similar to the questions in the real exam. I know there are services like Ucertify, pass4sure etc...if anyone has used these services could you please comment! Thank you all in advance

Where can I get practice exams for MOS tests?

I would like to pass the four MOS exams one by one to obtain the MOS Master certification. I have been studying the Office Bible series books and MOS study guide.
Do you know where can I get practice exams?

I would not use the MCSE title but you could certainly write replacement for MCSE or explain that you have the latest equivalent. Employees (particularly HR departments) are often behind on qualifiication changes. Kind Regards,
Makaleler Gönder
I don't see how your post has anything to with my thread?
It's a SPAM post. We get a lot of them on this forumJeff Wharton
MSysDev (C.Sturt), MDbDsgnMgt (C.Sturt), MCT, MCPD, MCITP, MCDBA
Blog: Mr. Wharty's Ramblings
MC ID:
Microsoft Transcript
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AP Computer Programming Practice Exam

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