C++ POINTERS (2025) - How to create/change arrays at runtime? (Dynamic arrays) PROGRAMMING TUTORIAL

[@CodeBeauty]

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[@DanTon-v7o]

Thank you so much for your lecture. It's very good and it helps me alot. I have a question regarding to deallocate memory: What if we don't call delete[]myArray but just only call myArray = NULL; ? Can you explain what will happen?

[@uccoskun]

You are a very good teacher. you specify the problem, explain it, and then finally solve it for us.

[@tep-gn4rk]

Thank you! I was so frustrated by my dynamic arrays assignment in class, I spent hours trying to get it to work. This helped clear things up! :)

[@CodeBeauty]

🤞🥰🥰

[@robertocarriero]

I do love your pronunciation! For a non native english speaker (like me), it is very easy to understand you :-)

[@CodeBeauty]

🤗🥰🥰

[@jahitrst2863]

Aight. Finally something good on KZbin

[@CodeBeauty]

🤞🥰

[@vrietywastaken]

Bro this woman is singlehandedly carrying me through my course

[@snazzym00se]

This was way more helpful than my lecture videos for class. Thank you

[@ananavarro160]

I've been looking at your videos (from arrays and loops), and I just want to say thank you so much. You always help me understand. I looked at prior videos on said topics, and it's always guys who think I know more than I do, your tutorials are for ACTUAL beginners, which I appreciate, and you explain things so well and the WHY too. There are not as many women in STEM, so it’s encouraging when I see another woman’s programming! Once again, I just want to say you’re an amazing teacher and thank you so much for putting this content out!

[@srivathsgondi191]

i have followed so many coding channels, yet this remains as one of the best for me.

[@czaratech7216]

I love how you explain things going on in memory!

[@sinodasidiatof5465]

Of all online tutorials, you are the best! Not only in C++. You must teach in universities. Charismatic!

[@careenwasonga]

I have been binge watching your videos and must I say, THIS ONE RIGHT HERE!!! It made everything make perfect sense.

[@CodeBeauty]

❤️🚀✨️

[@mohtdips277]

I am very happy when I see you .. I love your lessons very much, although I suffer from an understanding of the English language, but I somehow benefit ... My love for you and I wish you success and excellence .. from Palestine

[@CodeBeauty]

Thank you so much! 🇵🇸🥰

[@jeloi9364]

amazing explanation Saldina!!! TOP! are you planning to make a smart pointers video soon??

[@CodeBeauty]

Yes 😊

[@michaelmorrow12]

Love your videos! Currently in my last year for my bachelors and have this crazy 7 hour long test at the end of the semester where 1/4 of it tests my c++ knowledge. If I get anything less than a 70 on the test I auto fail no matter what I have on anything else turned in during the semester. Reviewing c++ with your tutorials is seriously boosting my confidence! thank you..

[@shaquilleoatmeal6588]

7 hours ? which country are you from bro?

[@mariacunha8508]

how was your test, sir? also, 7 hours? how do you survive?

[@sonido9519]

what did you get? what are you doing now?

[@k2305Pawan]

which uni, sounds crazy lol

[@tellator]

Thank you for your videos. It is much easier for people who are not native English to perceive your speech than other bloggers

[@zombiehellmonkeygaming1956]

Thank you for the tutorial, it cleared many things up for me. Do you think you could expand on this lesson to explain creating dynamic multi-dimensional arrays at runtime?

[@CodeBeauty]

I plan to do multidimensional as well 😊

[@MacysShopLifter]

Thanks! Really great video. You explained everything perfectly and with great detail. Had no fluff and was quick.

[@nitinchinmay260]

I am not getting an error when I write what you wrote till 4:59 😐😐😐😐😐😐😐😐😐😐

[@bintangyustra]

thank you so much, this video help me alot to finish my school assignment

[@kolbe6436]

I didn't quite understand this topic when it was taught at school so I am glad that you explained it well here and I was able to understand it. Thank you.

[@kolbe6436]

@Feev6r Yes, it is.

[@kolbe6436]

@Feev6r But it depends on the school you attend.

[@snehadey883]

Why didn't I find your channel earlier?😩 You explained it very well I understood this topic within seconds ❤

[@normalperson1130]

Thank you code beauty. Your way of teaching is really helpful in understanding these c++ topics. Now I feel more confident. Thank you very much.

[@baconsledge]

Very helpful and professional tutorials!

[@moizsultan5440]

Just subbed you today after watching 5 of your vids thanks for putting effort

[@CodeBeauty]

Welcome! 🤗🥰

[@alonalon8794]

I dont get an error when I run the code in 4:27. why is that?

[@smDonttakemeseriously]

From giving up coding to understanding it all. Your channel is amazing .Thank you so much . I promise to buy you coffee with my first salary :)

[@captainven0m38]

Well I am totally in love with your way of teaching c++ stuff and specifically I love this tutorial.

[@dubiousend9429]

simple and easy to follow, love it !

[@v037_]

simp

[@PeacefulMusic-l7o]

It was reeeaallyyy helpful, I can't say how much this video means to me. Thanks!!!

[@eliaspianomusic]

Highly appreciate the videos! Thanks for your effort! Greatly explained!

[@bara7979]

First and foremost, thank you for all of these fantastic tutorials. We would appreciate it if you could use the dark mode for future tutorials.

[@CodeBeauty]

Thanks. I did that already for later videos 😊

[@AnuragYadav-cp9jh]

I was frustrated but now i finally found how to declare and enter value in dynamic array thank you.

[@Utkarsh.Raj.129]

At 4:32, I don't get the problem by taking input of size different everytime...why would it be an error...I'm not getting error..pls look onto this

[@Srimudit]

You are a very good teacher. Please continue making videos on C++. PLease make videos on Data structures using C++.

[@itsme17717]

I just find your channel and you save my lots of time🥰🥰🥰

[@CodeBeauty]

🚀🚀✨️

[@bassets2450]

Great job! Keep it up! Also, I wanted to ask you if you're gonna do some GUI tutorials in C++... Your explanations are a golden mine... Don't keep them only for yourself! 😉

[@mashalmokarar4817]

Ms saldina by far your the best:))))

[@TheWierdVibe]

I have been trying to swap the elements of a dynamically allocated array but the program behaves wierdly of an array which is declared at runtime?

[@georgebentley-ricardo9445]

Thanks for sharing another great lesson, a video for algorithms would be great too. Many thanks 🤓👍

[@erikchen6883]

Thank you so much for this video! You are so knowledgeable and can explain better than a college professor.

[@corradosteri9150]

I do not get an error if i don't specify array dimension before compiling, running it and cout sizeof gets the right dimension.

[@theboy776]

Yes this girl explains really good. 😊

[@sogan754]

What I like about those videos is that they are detailed, and if I'm not mistaken, you're using the official cppreference documentation, and that is good because I recognize things from our Professor's lecture. He also uses that site as a source, which makes what is thought detailed and enough, despite most videos that talk about the concepts shortly.

[@metaman8662]

This is enlightening thank you!

[@Spaghettaboutit]

Thanks for this video, I needed it as a refresher/maybe I never learned this(?) - anyhow thanks for making a concise explanation that didn't get long winded.

[@mashalmokarar4817]

I cant say thank you enough👏👏

[@SpaceSurferGod]

Really nice explanation, thank you!

[@codevanguard]

great practice on de-allocate

[@emmapha4593]

Thank you so much for such amazing videos. I hope you could do videos about “sort” and “iterator”. Thank you

[@MacysShopLifter]

At 5:36 how did you add // quickly to comment that out?

[@رضوانناجي-ن5ص]

Amazing your explanation

[@vojtechkozak3328]

Will you do video about std::make_unique and std::make_shared?

[@Abbas-xd1mc]

Best explanation! Much appreciated.

[@suyash835]

#include using namespace std; int main(){ int size; cin >> size; int arr[size]; system("pause>0"); // return 0; } So here's was my code and this got me *no errors*, maybe its because of the new versions of C++ but doesn't it oppose the whole concept of dynamic array?

[@mrengineer26]

I was about to comment the same thing. I had to get up and check again why I didn’t get error. @codebeauty can you please explain? Thanks

[@rishabhsingh-gw3gf]

Thank you so so much.... finally understood all my doubts are clear...thank you so much for explaining this in so simple way...👍👍👍😃😃❤️❤️

[@datmapmap7942]

Thanks for your video. Hoping that you will make a video about linked list someday !

[@CodeBeauty]

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[@gisellegonzalez431]

I love your channel!

[@robertod893]

Excellent video!

[@Ashishkumar-mj4dh]

this video cleared my concept

[@valentineobinikpo5375]

Thank you, I finally understand DMA in C++..

[@songhye742]

Your teach very cleared I love you 😘

[@iamabdulsami]

Thanks a lot for clearing my concepts

[@music1.060]

beautiful teacher and fun programming is best

[@dayla8434]

How can someone be that perfect in teaching ! U're so beautiful ilu ❤

[@CodeBeauty]

Thank you so much and I'm happy that my videos help you! ❤️🥰

[@prokumar7239]

Question: When I try running the example at 4:31, I do not get the error that the expression must have constant value. The program compiles and runs. After some research I found it may have to do with the compiler language standard, I believe my computer defaults to C99. I was wondering if you had any thoughts on this. I am having some trouble setting the proper language standard. Note: I am using terminal commands to compile (g++ ... ) and run (./my_program) Do programmers usually set a standard before starting a project?

[@alecmatthews9611]

Same bro! I tried doing the example at that timestamp and it works just fine. I didn't even have to do the dynamic allocation thing. Any idea yet why this works?

[@shakilmosharrof_1994]

Please make videos on Data structures and algorithms in c++

[@CodeBeauty]

I already have some video about data structures ☺

[@juangaldo2892]

I love you, sorry and thank you for all!! I'm learning a lot!

[@gds1233]

came here from freecodecamp video. loving your content

[@realestateETH]

Thank you vary much sa for all your video 🙏🙏🙏

[@ArpitKumar-yo6up]

Thank you for the explanation

[@FunComputerScience]

nice video, helped me lot!

[@ahabdelaal]

Thank you . appreciate your effort .

[@spicyshizz2850]

9:55 I thought that when we did "new" the array changes from fixed where it was originally one after each other and that's why "myArray+I" would work. But doesn't new make the addresses not continuously right after each other? So why does it work with new?

[@Javagenusk87]

Interesting well explained this was very helpful thank you.

[@MarošDočekal]

Hi, thanks for video. I have question if it is better to use nullptr compare to NULL ?

[@CodeBeauty]

It is better to use nullptr 😃

[@shaladddin5687]

Thank you so much, the explanation is really satisfying that's all I can say 😄

[@__matthi]

Great explanation! Thanks :)

[@safiullah34511]

4:15 It works on my IDE but you said that it shows error ... The size of array can be specified at runtime

[@rmv9064]

Thank you SO MUCH.

[@aykut8517]

thanks for upload ,really helpfull

[@chanchaltiwari648]

please make a video on vectors.

[@inspirewithakb773]

which theme you are using?

[@btait1365]

omg thank you thank you thank you!!!!!!

[@prajwalv2222]

can you make videos regarding to STL in C++?

[@atharvagarwal6412]

Is it weird that when I run the code at 4:12 on g++ 13.0.1, I get no errors?

[@CodeBeauty]

If it's not broken, don't fix it 😁

[@legolas5684]

Great job!

[@vaughnmonkey]

very helpful thank you

[@saravanakumar.a]

Thank you sister😌

[@Scrawlerism]

Omg a good dynamic array deallocation explanation thank youuuuuu

[@CodeBeauty]

🤗🤗😊

[@khalidessamoudi2291]

Really beauty coding

[@arpnasjs9825]

Thank u😊

[@BKYADAV-zm7yv]

Nice explanation mam thank you so much

[@seetllee]

Hi Saldina! One question: How do you get VSCode to read your code before you compile, and show you possible errors, like it did in 4:26?

[@gamefreak6126]

That’s not VScode

[@sergio_sciuto_conti]

Can I know what camera do you use to record? Is it a webcam or something else?

[@CodeBeauty]

It is my mobile phone cam. Is it okay? 😃😃

[@sergio_sciuto_conti]

@@CodeBeauty It is fantastic, you're using the front or the rear camera? :)

[@farichzineb6162]

4:31 i dont get any error when i try this the program was running just fine with me and i made the user fill the array with the size they put please help i dont understand where the problem is

[@mmaranta785]

Thanks. I learned something.

[@cpprogramming2471]

int size; coutsize; int array[size]; doing it like this does not give any errors to me. can someone explain.

[@AangContreras]

Same here. I'm not sure why x.x

[@yasua7000]

Variable length arrays (VLAs) are allowed in C99 and many C++ choose to accept them as well. Try compiling it with stricter warning options and you should see something like "warning: variable length array is used [-Wvla]"

[@yashjadhav6838]

same

[@toastyren3991]

Very interesting video, you're amazing Saldina ;-) Thank you very much for the time you spend making those videos ;-)

[@CollegeTubeBrw]

Please make a video on vectors as well

[@ritikarai1232]

Thank u Saldina!!!!!!!

[@CodeBeauty]

You're welcome! 🤗🤗