Visual Basic problem (very noob)

hi all,

i have decided to learn VB and the first program in the book already gives problems:

Code:

---

Private Sub Command1_Click()
Image1.Visible = False
Label1.Caption = Int(Rnd * 10)
Label2.Caption = Int(Rnd * 10)
Label3.Caption = Int(Rnd * 10)

If (Label1.Caption = 7) And (Label2.Caption = 7) And _
  (Label3.Caption = 7) Then Image1.Visible = True
    Beep
End If
End Sub

---

It is giving the error End If without block If

it should be about the same as:

Code:

---


if((Label1.Caption ==7)&&(Label2.Caption==7)&&(Label3.Caption))
{
          Image1.Visible=TRUE;
          Beep;
}

---

(nice huh? C and VB in one code :D). this is what it should look like, but then in VB....

This is really bothering me, VB should be such an easy language, and i know C, but still i do not understand what i have done wrong!!!

ps i'm using VB 6.0 pro as compiler, and i did try the above code with and without the '_' underscore.

Let me tell you first that I do not have the vb compiler installed on my machine at the moment but here goes my suggestion. Apologies in advance if it does not work.

If ( (Label1.Caption = 7) And (Label2.Caption = 7) And _
(Label3.Caption = 7)) Then
{
Image1.Visible = True
Beep
}
End If

* I hope it will work. Play with the brackets it seems that they are causing all the errors. Try enforcing one pair of brackets at a time. And if no success then jump to implementing both of them.

All the best. Do let me know when you finally figure out the cause of error. Its been a couple of years since I touched VB or programming for that matter :(

After your 'Then' you need to put the rest of the code on another line. This should solve your problem.

Code:

---

Private Sub Command1_Click()
Image1.Visible = False
Label1.Caption = Int(Rnd * 10)
Label2.Caption = Int(Rnd * 10)
Label3.Caption = Int(Rnd * 10)

If (Label1.Caption = 7) And (Label2.Caption = 7) And _
  (Label3.Caption = 7) Then
  Image1.Visible = True
    Beep
End If
End Sub

---

This is not directly pretaining to your question at all, but why in the hell would anyone learn VB?

That and Math, I am surprised that you know VB.

I thought you were a C person.

If Mathgirl solution doesn's solve your problem, try this

PHP Code:

---

Private Sub Command1_Click()
Image1.Visible = False
Label1.Caption = Int(Rnd * 10)
Label2.Caption = Int(Rnd * 10)
Label3.Caption = Int(Rnd * 10)

If (Label1.Caption = 7) And (Label2.Caption = 7) And (Label3.Caption = 7) Then 
   Image1.Visible = True
    Beep
End If
End Sub 


---

I do agree with whizkid2300, don't bother with VB6... If you want to learn VB, learn VB .Net at least!!

I am...I love C++. Unfortunately, to get a programming degree you have to learn more than one language. :)

Agh... That explains it. I unfortunately am being forced into taking VB next semester.

Math are you back in school, I thought you graduated with a Degree in Math. Working on getting your masters?

I was just taking random post-graduate classes in computer science (for the last two years) because I couldn't decide on a master's degree. However, I have finally just decided (this last semester) to, instead, get another bachelor's degree in computer science. All I really want is c++ and assembly classes....unfortunately there are no degrees like that.

Thanks for your help all, at least now i know that VB is space or line sensitive, another reason not to like VB :)


well i want to learn VB cause i am learning ASM and RE as well, and since i have found that when a program is written in C/C++ i can understand what happens when i disassemble it, but when it is written in VB, even the simple crackme's, i have a hard time following it. that's the reason i am learning it, and i will learn delphi like this too.

plus that i do believe it will make me a better coder if i know multiple languages...

thanks for your help all, i know know what i have done wrong!!

learning VB !!

did'nt you hear that VB teaches you bad programming habbits !

Quote:

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Originally posted here by Dia_Byte
learning VB !!

did'nt you hear that VB teaches you bad programming habbits !

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Can you give me better way then?

VB is fine, and it doesn't teach you bad programming habits. Listening to retards in this forum does...

If you take the time to learn proper coding and design techniques you'll do fine. I'd also recommend learning to use the debugger. VB6 is a fine language and I've used it to build commerce systems that handle millions o dollars of transactions a day...you just need to take the time to learn how to use it properly. It is still relevant if you get a job supporting older systems for companies that still have legacy code...if you don't have to do it I'd recommend going to C#. Most schools lately seem to be pushing VB.net as their intro language however.

Juridan, I understand VB isn't a bad language, but the fact that it is a proprietary language, is not to the best of learning.

It also limits, it's use-ability. I haven't tried out C#.

Juridian, why did you said that???

i kinda hoped that dude would say i needed to learn C/C++, then i could neg him for not reading the thread ;)

The fact that it is a language primarily limited to windows does not mean that one should not learn it. How does it limit it's usability? If you say cross platform support I'll slap you upside the melon....most people do not bother to write cross platform c/c++ or even need the ability to write cross platform code.

White Scorpion, in the end I'd recommend picking up c/c++ simply because eventually you will probably need to deal with some code written with it. Doesn't stop you from using VB however.

Quote:

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Originally posted here by whizkid2300
Juridan, I understand VB isn't a bad language, but the fact that it is a proprietary language, is not to the best of learning.

---

Umm, news flash, a lot of languages are proprietary. Whether it's proprietary or not has absolutely nothing to do with its useability and ease of use/understanding.

Quote:

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White Scorpion, in the end I'd recommend picking up c/c++ simply because eventually you will probably need to deal with some code written with it. Doesn't stop you from using VB however.

---

No need Juridian, i'm still using it quite often, the only reason why i want to learn VB is to Reverse Engineer it. Not to write programs with it that will be worth something, but just to learn how it looks like in RE ASM.

ok this is my reply:

i personally think that VB is evil, please respect my opinion "Juridian" !

even thow i know VB a little but i think its bad cause its not portable off windows and it is easy!!! you can learn VB if you want to be spooned information, but as a hacker "White Scorpion" you should learn things that are deeper than simple VB,

frankly if you want to learn VB no body can stop you, but as an advice learn VB.NET it is the new generation of VB

and good luck

Quote:

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No need Juridian, i'm still using it quite often, the only reason why i want to learn VB is to Reverse Engineer it. Not to write programs with it that will be worth something, but just to learn how it looks like in RE ASM.

---

i'm not an expert in RE but i think that it would be a challenge to learn VB RE,

that's what i concluded from reading some cracking tutorial ...

Umm, news flash, a lot of languages are proprietary. Whether it's proprietary or not has absolutely nothing to do with its useability and ease of use/understanding.


No ****, ever here of BASIC, PASCAL.

Being Proprietary in my opinion is a weakness of any langauge.

I will say this, when doing windows applications. VB.net is the way to go. The time it takes to make a program is far shorter than the time, it takes to make a conterpart in Java, C, or Perl.





I do not remember ever saying that VB, was hard or easy. I said I choose to dislike the langauge, because I find it stupid to make a langauge, that works on just one OS. That means, that if you want to write anything that works for a different OS, you can no longer us, that language. I never said, I thought VB, was a bad language. I said I don' like that.

I know for a fact, I never said anything about VB, being hard to understand.

My point is simply, that with VB, you can not use it on anything that is not Windows. That ****ing sucks. That puts a damper on me when I want to write something for my linux server.

Of Course I could use a different language, but this means, that if the only language you know is VB. You are S.O.L.

Quote:

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i'm not an expert in RE but i think that it would be a challenge to learn VB RE,

that's what i concluded from reading some cracking tutorial ...

---

this is my reason for learning VB, and that will also be the primary reason for learning delphi when i start with it. but perhaps, in the future i learn a language which i like even more then C, and perhaps that will then become the main language i will use....

for now i mainly program for windows, but i think it will never hurt to know a language which can be used on multiple OS's. also i wanted a powerful language, so i started to learn C a while ago...
now that i have written several programs in it, i feel it is time to learn another language and that would be ASM. but i noticed that it is a lot easier to learn ASM from a RE perspective then that it is to write a program from scratch.... this made me stumble into the problems i now have Reverse Engineering VB, so i put aside my eager to learn ASM for a while and started VB.
now when i feel i know enough about VB and Delphi, i will continue to learn ASM again, this way, since most programs that i have found are written in VB, C/C++ or Delphi, i can rely on getting past the problems i had with first learning it...

i personally do not like VB cause as far as i have seen it for now is that it is merely a cut & paste language, just like when you create a webpage with dreamweaver or Frontpage... i do not like this. my website i have written in notepad and completely from scratch, this way i will learn as much as i can about this subject, and this also goes for coding....

i also plan on learning java in the future since this is a language which is cross-platform and used in web-app's a lot...


if i master all those languages (including ASM), i think i will be satisfied with my programming knowledge and then only experience can make me a better programmer ;)

Quote:

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Originally posted here by whizkid2300
Being Proprietary in my opinion is a weakness of any langauge.

---

Care to elaborate on why? I'm interested because I've never actually heard this reason as a dislike for a language before. The only two languages I see as not being proprietary are C++ and C, due to the large number of people who have done their own implementations of the two, and the size of the Standard Library. Pretty well all other languages are controlled by a central body that decides what should be done with the language.
Along that line of thought, it leads me to wonder if perhaps you have Proprietary and Open Sourced confused. Even some Open Sourced languages are still proprietary; PHP is a good example of such a language.

Quote:

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I will say this, when doing windows applications. VB.net is the way to go. The time it takes to make a program is far shorter than the time, it takes to make a conterpart in Java, C, or Perl.

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The benefits you describe are exactly VB's forte - rapid application development and deployment.

Quote:

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I do not remember ever saying that VB, was hard or easy. I said I choose to dislike the langauge, because I find it stupid to make a langauge, that works on just one OS. That means, that if you want to write anything that works for a different OS, you can no longer us, that language. I never said, I thought VB, was a bad language. I said I don' like that.

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Hrm, now see, I have a problem with that statement, because you recommend using VB.NET above, and VB.NET can run on many operating systems.
A large majority of client PCs out there that use Windows. It's potentially career-limiting to choose to dislike a language because it only runs on ~90% of the desktop PCs, and probably about 65-75% of the servers out there.
If you want to learn a language that will be perfectly portable across a lot of architectures and operating systems, Java is your best bet, though it too brings a boatload of limitations with it.

Quote:

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My point is simply, that with VB, you can not use it on anything that is not Windows. That ****ing sucks. That puts a damper on me when I want to write something for my linux server.

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Erm, look at MONO. C# worked near-flawlessly last time I played with it (6-8 months ago), and I hear they've made some great progress with VB.NET in the last year.

Quote:

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Of Course I could use a different language, but this means, that if the only language you know is VB. You are S.O.L.

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If you honestly believe that is the case -- that you are incapable of pursuing other options -- then yes, you're absolutely 100% correct, but not for the reasons you think.

So if I am sooo wrong and you are correct educate me, you are always quick to call someone wrong. Prove to me I am wrong, and why I am wrong. I am still waiting. I will give you credit, you know more than me, but when you just saying ****, I have no reason to change any of my views or thoughts. **** you were the person that helped me out with perl in the beginning. I still believe that VB, is not the best language to use.

How can you use a language that can not run on Apache Web servers. Last time I checked, about a good 80% of the web was running apache. So why choose a language, that can't be used for that?

Java is a great language, one that I intend to learn when I have the time. I don't remember saying anything against java. Ohhh and just so you know. Perl can run on any server, anywhere. Mac, Windows, Linux. With CGI, perl works out great for web ****. It also is great for just writing regular programs. It is slow, but it works.

So please, educate me, and get rid of my thoughts that are incorrect. Explain to me why I am incorrect.

you said that you wanted to learn JAVA

thats good ! java works on all platforms including solaris, you can also learn JAVA SCRIPT to add some cool effects to your interisting website ...

Quote:

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Originally posted here by whizkid2300
So if I am sooo wrong and you are correct educate me, you are always quick to call someone wrong. Prove to me I am wrong, and why I am wrong. I am still waiting.

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Erm, where did I say you were wrong? Were you just waiting to take offense to someone who didn't share the exact opinion you did?

Quote:

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How can you use a language that can not run on Apache Web servers. Last time I checked, about a good 80% of the web was running apache. So why choose a language, that can't be used for that?

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Depends largely on the project. The point is not that you should restrict yourself to one language, but rather that you should open your mind up and learn lots of languages. It is IMO the only way to stay effective and competetive in the programming job market.

Oh, and FYI, you could write VB apps that run on Apache Webservers as CGIs. It would be messy, and far beyond usefulness, but it could be done.

[...]

I'll say you're wrong. Apache also runs on windows, therefore you can use VB with apache. Combine that with the ability to use ASP with apache and then you can do the same old school vb com/asp **** I used to work on a few years ago.

Now go stfu.