Buckys C++ Programming Tutorials - 19 - Simple Program Using a Loop

[@JacquesMWest]

I'm sorry, but this is literally the clearest 360p video I have ever seen in my life.

[@laurelclementedinopol3615]

+Jacques West (West Coast Aviation) yeah... check out his other video showing his house... and you'll know why... :D

[@wafflez9888]

+Laurel Clemente Dinopol Link please :D

[@zapxcero]

LMFAO YOU SAID IT

[@yosansu]

ikr

[@beastgod5554]

your tutorials>college

[@JonathanPunti]

Yes!!!

[@ian31415]

not really, you are just learning syntax here.

[@shutdahellup69420]

@@ian31415 thats all you really need and some examples... then rest depends upon your creativity and practice.

[@ian31415]

@@shutdahellup69420 cool, so can you help me parse a string of the form [-]n1 / [-]d1 op [-]n2 / [-]d2 where n and m are denominators and the negative signs may or may not be there and op is + - / or * from these tutorials? What about doing it with tree's? Can you explain a tree from watching these videos? They're pretty useful.. pretty sure a B+ tree is used to store files on Microsoft so it's not just theory. But not the kind of thing you can realistically come up with creativity unless you have a math PhD.

[@hutlazzz]

@@ian31415 Internet tutorial will make current academia education useless. Eventually will turn out just like this in future,ton of lecture and exemple from home... Thats the future of learning.

[@Galluxi]

Btw guys, you can just type total += number;

[@river6634]

+Geometry Dash Galluxi Nice to know it works for C++

[@Galluxi]

+Riverreed Ward :)

[@dereklampa4544]

+Geometry Dash Galluxi That'll work. Although thenewboston only kept it simple, not efficient and quicker.

[@Galluxi]

+Derek Lampa (Trackten369) "+=" is simplier

[@dereklampa4544]

Geometry Dash Galluxi I know. Most newbies do not know "+=" so they use it basic ways like "x = x + y" since that looks very basic while we use "+=" for more efficient in writing codes.

[@davidmuhs4590]

OH MY GOSH I LOVE THIS. PROGRAMING IS GONNA BE SO FUN SO GLAD I HAVE THIS VIDEO SERIES.

[@GJH465]

Been watching you on solo learn to learn c++ and you are great. Sir a applaud you

[@JowyFull47]

Thanks man, I just started programming about 1 year ago, I'm 25 now and thanks to you I have been able to keep up in class. currently studying to be a software engineer. thanks bro, wish all the professors were like you.

[@RangerMcFriendly]

1st year here, how did it all go? Did you end up as a software engineer?

[@chicharhon1351]

​@@RangerMcFriendlyman me too i wanna know

[@vicda5941]

bucky, your videos are awesome. I really enjoy them. I've been struggling in my c++ class, but after watching them, everything in class starts to make sense.

[@alisonmcewin6352]

You are the sole reason I'm understanding programming. Paid wayyyy to much for this class

[@cristiannaziru1987]

Alright this is a bit confusing now. We didn't even need the "(x

[@shadane1436]

better than my professor

[@Benjy1]

I wish he was my professor

[@usmankhalifa5699]

same

[@beri4138]

+Benjy L Oh my god that would be so awesome!

[@DimitrisBoump]

I think you forgot to day "Pretty cool aha?" :P

[@AsadAli-om9ir]

The name C++ actually came from the concept of Unary Arithmetic Operator ++. So, C++ actually means C+1. 1:30

[@nightprogrammer7474]

just a couple million of dollar :)

[@Vorbis5]

Bucky, you gatta be the coolest guy on the internet. All your little quirky things just make you so awesome.

[@exsertchillax]

Finally, I learned something useful and something that is not advanced to remember, such as classes. ;)

[@Double_Wood]

"total += number;" ... is another nice way of writing... "total = total + number;" ... a lot of languages don't offer these nice shortcuts so i like to use it where ever possible!

[@hello838]

This is a good reminder and a wake up call for me :)

[@SeifOrabi]

Couple of million dollars, and you call this a calculator? LOL! Love your tutorials Buckey.

[@safrinabohel7324]

your video really help me a lot i watched it from the first tutorial and i'm gonna finish it..than sitting in the class almost 3 or 4 week and i don't get anything from it....anyway thank u..your video is the best and it's really easy to understand..

[@danieldimitrov6562]

I FINALLY UNDERSTANT IT. THANK TOU SO MUCH BUCKY !!!!!!!!!!!!!!

[@2marshtomp]

I can explain Bucky's life in 3 words : Awesome Bacon and "So you're sayin alright...."

[@heisenberg7945]

Pretty cool huh

[@marcus9393]

Bucky after 19 tutorials : Okay! Lets do something useful now

[@johnmurphy1248]

"So our program is working five and dandy so far." - This is why I enjoy watching Bucky.

[@TheVincenthwind]

After hearing the problem, I paused the video and tried to figure it out myself. To my grand surprise, I succeeded. I decided to watch the video anyway and found that what took me 40 lines of code to do (granted, I had extra some extra cout lines), took Bucky only 15. So I can code, I just manage to do it in the most inefficient way possible.

[@hungrygrimalkin5610]

Always declare variables with default values for better memory managing.

[@HexPlays]

for those of you looking to get the average number of the 5 put this below you cout

[@Dansscreen]

6:35 lol that cracked me up.. such a casual 19 episode build up to this moment

[@devChoco]

Thank you Bucky for the advice especially.

[@lickguitars1276]

great tutorial, it help me alot in understanding how to think logically

[@rbrik4747]

Just to point out, Bucky, using ++ as an easy and quick increment also seems to be less CPU intensive therefore this is now considered a good practise :)

[@BradenBest]

Okay...I don't know why my comment disappeared with an "unknown error". So I guess I'll just post it again - - - - 1:22 `x++` and `x = x + 1` are not the same. x++ is actually a very unusual operator that, unlike every other type of assignment there is in C, returns the value of x BEFORE performing the operation If x is 1... int y = x++; // y = 1 int y = ++x; // y = 2 int y = x = x + 1; // y = 2 int y = x += 1; // y = 2 The way you can tell the difference between x++ and ++x, if "x++ is a post-increment and that is unusual" isn't good enough, is in the order of the tokens: x++ return and then increment ++x increment and then return The "expression returns its result" trick works very well with another fairly obscure language feature most often seen in obfuscated/golf'd code: the comma operator If you can figure out the results of this expression, then you have a decent understanding of the comma operator: result = ((a < b ? (puts("complexity!"), c = a + b, d = c * b, d + c + b + a) : (puts("simplicity!"), result +=b)), 20 + 10 + 12); ...for (a,b) in (4,5), (7,6), (0,0), and (12,9) If you can understand the source code for Muller's original brainfuck interpreter*, then you don't even need to be reading this. * For some reason, it's really hard to find online. It looks like the original distribution is no longer around. I happen to have the source code lying around, though, so here it is: pastebin.com/X04CiBX9 Lots of clever tricks in there. From the header of the for loop and how it combines assignment with the base case, to using pointer arithmetic to share memory (bf source code and "user memory") and step through the source code, to using && and || and ?: in place of if/else, to abusing the comma operator to avoid writing {} brackets for the for loop. It's got it all, and is an excellent showcase for how expressive C is.

[@superstudent280]

Damn!

[@ahmedhamdy812]

The two teachers that were disliking each video, got tired because of the large number of videos. Bucky wins.

[@casperes0912]

English is not just words put together, it basically also has something called grammar. Try it out, it makes reading messages a lot easier

[@Arthurk346]

"...wecome to your 19th tutorial. And you know what? The bacon from previous tutorial was tasty."

[@tlita93]

Shorter version of total = total + number is total += number :)

[@dibbiepk]

@TheBeuteOffical Yes, its possible, if you use a String instead of a Int, Strings hold 1 letter, ints hold numbers, you might learn about that later on

[@evanmastermind]

x++ adds 1 to the variable "x"... x

[@aether-s2842]

So whats the point of "x" being there after you have made the int "number"?

[@patricengao9415]

Anyone noticed that the number of integers you enter has to coincide with the test, otherwise if you enter fewer integers, the program iterates addition of the last integer up until the test is met? Good one though, Bucky!

[@TsvetomirLazarov]

No, because it will increment it only by 1. But you can make it like this: total+=number; That will add number to the total.

[@ianiket0013]

Thank you bucky for sharing the video..........................

[@mokomamaminecraft]

you could just do "total += number"

[@LukasTeeVee]

And I thought people telling him to use "bacon++" in the last tutorial were sad...

[@SirRobbStarkGamin]

***** you have to keep in mind, these tut's are for complete noobs to c++, so they way he does it explains it better, bacon ++ is just a shortcut.

[@Rahulbajaj561]

I'm very sure that he knows different ways of writing the same code, but remember he's making these tutorials for complete beginners who have zero knowledge about programming. so he knows what is the best. you don't have to tell him what he needs to do just to look smart . and if this wasn't your intention re-frame your sentence.

[@Rahulbajaj561]

jeez, why am i even replying to a 4 year old comment?

[@catlover4ever104]

@@Rahulbajaj561 hey dude I like ur username

[@marko4449]

holy shit!!! i just made a stone aged calculator :D im starting to like this tutorial a lot :D

[@Phl3xable]

cheers, can't wait for more!

[@venkateshkulkarni2227]

Shouldn't an error be shown if I enter more than 6 numbers as the input?

[@timlyo]

Good to know Your comment made me feel warm and fuzzy inside too :D

[@gnaneshg7663]

Best c++ tutorials

[@TheCosmicChicken]

I put on captions; here's a sampling of the gems I got: "Let's go ahead and just give him a nice little pronounced rain [...] mom" "The first time the user anti remember it was ten so the total which was a hero before is now equal to zero plus ten so now totally host ten the next summer they entered was aids" "Now it it was twenty five blasphemous five also" "You guys in goa injected on calculator into words enemies who just build the best calculator unearth"

[@lx6381]

3:00 i dont understand how you could enter 5 different numbers. wtf ?

[@firebirdyt9150]

Because the line : cin >> number; runs 5 times, although the new number will replace the previous number, the while loop (x

[@fatemonkey]

***** Nope.

[@fatemonkey]

***** Still nope.

[@fatemonkey]

***** I'm the child even though you don't even understand what the term "weeaboo" means?

[@fatemonkey]

***** Any particular reason? Or are you just calling me an idiot as a way of trying to back out because you have no idea what the hell you're talking about?

[@kyy6150]

Why when i position "int total=0;" inside the While loop function , i get an error?

[@MAlicechan]

If you declare a variable inside the loop, it will only be defined as a local variable within that loop, meaning that it will not work in the main function. Also it will initialize it every time the loop repeats (which means it will return back to being = 0). tl;dr it's bad practice to initialize variables within loops (exception is for loop counter)

[@dibbiepk]

LOL!!!! Love the ending "Ill see you next time when im a millionare!" :P By the way, to clear up some questions you may have he missed: What if they enter 6 numbers? Then you need an else statement, somthing like else() { cout "You can only enter 5 numbers man... dont chate me!" } or whatever

[@iaybalac7874]

I understood everything in the tutorial but still, I have a question: So i, didn't set a number for total at first, just out of curiosity, i left it as just a variable like int total; and then everything went perfectly fine but it just calculated the whole thing wrong. Why exactly is that?

[@TheBscit]

@bKfASSASSIN I dont think he said it wasnt in C. I think the C++ thing pretty much means that C++ is a simpler and faster way than C just like how n++ is a a simpler way of n = n+1

[@ste5402]

Someone explain this tutorial to me, please? I understood the thing about the total, but I don't quite get the stuff he wrote about the x variable. Especially, I didn't get why int x must be set to 1.

[@olivebates]

you can also do x+=1, same outcome

[@seaverschultz932]

i need help. A message keeps appearing saying that "cannot open output file bin elease\trivia game. exe access denied" the program is called trivia game. What does this mean?

[@MultiThunder54]

total+=number; works the same way and saves you keystrokes.

[@belgacuervo]

to keep it simple, this is basic programming. But total +=number is legit.

[@zeustheboerboel3794]

You already are a millionaire for me!!!! ;)

[@crjacinro]

Hey MR. Bucky Roberts,, how many c++ tutorials have you made so far??? So far, i have seen 3 series tutorials on C++ : - Bucky's C++ Programming Tutorial (Code:Blocks, 2011) - C++ Tutorial (dev C++, 2008) - C++ Programming Tutorial (Code Blocks , 2010) so which of these tutorials am i gonna watch first as a beginner?? whats d diff between the 2010 and 2011 tutorial?? thanks..i just want to learn c++ .. NICe VIDs by the way...

[@josejaimefelixgarciagarcia8884]

Hahahaha nice folder name bucky. 5:22

[@DromeG60]

Have you skipped half the tutorials?

[@abirishtiaque9749]

Hey Bucky where are your tutorials about converting strings to lower case or upper case letters and finding out their lengths and all those stuff ?

[@pabloolbap6478]

cout

[@hildamartinez8778]

You would not need 5 different integers to save the cin values?

[@ouisabughazaleh1187]

"let's just copy this and email this to microsoft and hopefully they pay me you know just couple of million dollars for it " i actually laughed so hard and paused the video for a bit

[@TheElectronics0]

You must use #include -LSS-string-GTR- and replace any int with string

[@creehoggan4327]

when you enter a number over 9 digits, the computer explodes.

[@mohiuddinopu]

if um not declaring total = 0, the final value of total is 2 short ( if the sum of 5 number is 10, but shows 8, ). whats the reason?

[@1234321jack]

When you define a new variable, your telling your computer to pick a small piece of memory to put something in. This piece of memory will have some old number left in it. If you don't set the variable equal to something, it will stay set as the old random number as default. So, in your case, the piece of memory total was assigned to had -2 left in it, and since you didn't reset it to 0, this subtracted 2 from the total.

[@IReDoXI]

*INCLUDE AND NAMESPACE* int main() { int x; cout

[@KingKilleer96]

best calculator on earth xdxdxdxd

[@mrbeantje1]

@SuperHappyvideo x++ adds 1 to x if x = 1 and u do x++ cout

[@lelegricc1520]

How come if u dont do total = 0; you get a really weird long number?

[@P4INKiller]

Because it was TOO AWESOME.

[@SmithsRichard]

You can also do total += number;

[@armasxu]

i like your good commendatory!!! copy and paste it to microsoft and be a millionaire hahaha

[@vailynx]

What if I want to show me al the numbers that I introduced in ascending order??

[@neo071991]

i tried making: int total not equal to 0, i didnt assign a value to total. im trying to figure out the difference in putting an assigned value of 0 to total vs. just 'int total' itself. int total; vs. int total = 0; anyone care to explain it to me, im just really curious.

[@MrOlympus223]

+NeO Kun i dont know about c++, but in Java, if you dont assign a value to a variable, it will either be "null" (wich means it has no value) or you get an error that the variable might not have been initialized. In the last case your program terminates. So i would recommend to always assign a default value to your variables.

[@daanleiva]

+NeO Kun It's slightly different in c++ than in Java but MrOlympus223 is right, you should always initialize your variables. Basically this falls under the "undepredicatble behavior" category, meaning that the value for total could be anything (typically based on old values that your stack had). Normally you'll get some trash value like -151981498 something. Better to always initalize to have a guaranteed behavior. Hope that helped!!

[@neo071991]

Thanks for the reply guys, still a newb here :)

[@leenminr6553]

They added a two plus signs, they thought it was cute hahahahahahah

[@IReDoXI]

When you do "int x;" the value of x is not 0 by default. Its some random number.

[@klodiqoshku4315]

by using the knowledge I gained by bucky (untill now) I managed to create this: #include using namespace std; int main() { int password = 123456789; int z = 1; int x; cout

[@KyLey1990]

@TheNeweN24 not sure if this is in engineering but its in computer science for sure

[@pancekaradzov3885]

Did you become millionaire? :D

[@ТайныйЯ-к3ь]

Of course, he did.

[@Veldr0N]

I think he knows all the programming languages in the world so,he did indeed

[@pancekaradzov3885]

I guess that. I am dreaming to become one day like him doh :)))

[@IgorAherne]

VeldroN hello :D

[@kursatsaimtuna7163]

have you achieved that goal? :)

[@rbsupercool]

preeeeeeeeeeeeettty cooooooool hahhhhhhhhh!!!!!

[@LosEagle]

Thanks! Never noticed :)

[@casperes0912]

That would make sense. Thank you.

[@mockingbird3809]

#include using namespace std; int main(){ int a = 1; int number; int total = 0; cout number; total = total + number; a ++; } cout

[@nigelstanford4]

This makes no sense...what was the x++ there for at the end if the vid and the x

[@A1701D]

Good example, however teaching var++ before ++var may not be the best in terms of coding etiquette -- while they yield (more or less) the same result, generally unless you have a reason to use the post-fix operator you should use the prefix operator (code-wise, it is technically faster and more efficient). Something I learned from my coding class.

[@2marshtomp]

I was actually thinking about that exact thing 2 days ago...

[@Busola29]

I think this program better works with long command... Where is now bucky , family , maybe no time or work for corporation? GZ for best C++ tutorials Bucky , Bucky go to Next year i will bee millionere... :)

[@metznimbo29]

@xXxDiukexXx I dont have visual, but try typing system("PAUSE"); at the end, before return 0; . it might work

[@chxse1817]

Python: 8 lines of code C++: 20 lines of code

[@chxse1817]

x lines of code assuming that each statement is on a new line, just as well-written code should be. When you have everything on one line you cannot possibly debug. The compiler only tells you which line the code error is on, and a brief description of what was wrong. You can see the issue here.

[@casperes0912]

What about proofreading? I don't see the connection?

[@Junaidkhan-ti8qd]

Plz help me how to use of loops in an equation of hyperbola

[@Junaidkhan-ti8qd]

yeah..but you are too late bro.so i was done it early

[@TheNeweN24]

hey can someone tell me is this the inginer (i know it's spelled wrong) level of education because i'm 16 years old and i just want to know advanced stuff that i'll learn in school

[@LosEagle]

Why did he set total to 0? If you don't add value to variable its 0 anyway right? So its kinda useless.

[@chulibran]

You are the best. Really.

[@casperes0912]

I don't think I'm seeing it mate, I might be slow here... Could you please point at exactly what you mean? I'd really like to understand this...

[@AliasProsch]

I would guess, since it's a tutorial, it's easier for others to understand that statement than +=

[@ARYAINDIA1997]

I'll rather preffer to study from here rather than BOOKS!