Creating First Program ( Hello World ) in C Programming Language Video Tutorial

[@robiot]

"Hello, World !" The beginning of a never ending nightmares

[@dean1534]

Man, I love you. Looked all over the internet confused by it all, came here and one hour later i've got my first program running.

[@LearningLad]

Thank you. keep Learning :)

[@pavithrasori8416]

can you help me from where i open c++ compiler

[@jetswhiteout961]

These C vids will help me for the winter term in university, cause one of my comp science courses uses C I believe.

[@sivakiran8330]

hello,Mr anil you did really great i want to ask you a doubt : i want to type two dialogues also iam able to compile but there is no space b/w them wt should i do to get space or to get it in next line

[@MsIalSs]

When I compiled and tried to run the program, I got this error saying that "Source file not compiled". However, this can be solved by going to: C:\Dev-Cpp\libexec\gcc\mingw32\3.4.2 , then deleting collect2.exe :-) . And thanks for the tutorials.

[@LearningLad]

+ial523 glad that your problem solved :)

[@thakurnikhilsingh2027]

even though it is showing the same error can u help me out please......

[@anastariq1310]

Can you help me out with same problem

[@datascientistoflife8550]

I have never seen someone make the things so easy , and easy to digest..

[@samdavepollard]

Yours is one of those channels where I'm happy to let the ads run. Especially that guy from udemy who keeps telling me that 'Python is where it's at.' :-) Many Thanks for sharing your knowledge.

[@LearningLad]

Glad you like my video's. all the best :)

[@THECHINMAYSATI]

Hi. Can you please explain what was the use of int main? As you the main function is gonna return some integer value. What does that mean. And there was a return command in the end to work with the main function. But why did we need an integer here as we are trying to print Alphabetical Output ?

[@mohdshahfaisal2981]

CHINMAY SATI yeah we can execute program even by just main() and without return0

[@0xwhoami]

int main ... that mean we will return and int value... later on you will see void or whatever with main ... but the most important is that you need 1 main

[@pinklady7184]

CHINMAY SATI, Int is a return type, so if there is nothing to return, just type in return 0.

[@lazy_wolf_unofficial]

Is there any necessary of Conio.h in Dev c ++

[@petergorgioski2043]

Wow so informative, you're awesome! You deserve more views my friend

[@LearningLad]

thank you. keep learning :)

[@umarbunu6472]

man this is really helping... You're very good at it

[@LearningLad]

Thank you. keep Learning :)

[@johnyvicewax7375]

Mr.Anil now i got to know why we use return 0 in programming , after watching video 23 about functions, thank you for that.

[@LearningLad]

Yogananda Kh glad that you understood the concept :)

[@digvijaya2017]

Why?

[@sweetysahi5513]

I'm 1st year b.tech ECE student sir...I have algorithm and c programming languages.. are u doing this in notepad?

[@sayandey6667]

Your learning process is very good..

[@yamunaperumalsamy4768]

Hello sir.. u asked to install codeblocks in the previous videos.. but now you use a different compiler.. how can I install this? Will codeblocks be used in the following videos?

[@ubcxlt]

Yes, I was surprised at this.

[@aakash4351]

I have read somewhere that conio.h is not a standard c library. Then why we use it in c? Sorry if question is dumb, i'm new to programming.

[@LearningLad]

yes it is not a part of c standard library. only some compilers provide it. but whenever it is available, it provides some console input output functions which will make your interaction with console pretty easy.

[@aakash4351]

ok thank you sir! And You are a great teacher. The way you explain everything in such a short video even i as a mechanical engineer had no problem understanding basics. Thanks again sir.

[@LearningLad]

aakash singh thanks man :)

[@praveena9158]

wow! just amazing this tutorials are very useful and easy you understand . thank you sir

[@LearningLad]

pleasure :)

[@sujaypuvvadi2342]

Hey nice video! I've got a problem, after i compile the program (It says 'Done'), I'm not able to run it. It says "Source file not compiled". What might be the problem? And how do i resolve it? Thanks in advance :)

[@LearningLad]

+Sujay Puvvadi sorry for late reply. download and install orwell dev cpp. it will solve your problem.

[@sujaypuvvadi2342]

+LearningLad Thanks a lot! :D

[@amishranjanofficial]

Should I open code blocks ide app to write this source code or any other app

[@pokerbuddy62]

What IDE are you using? My codeblocks looks nothing like this

[@arifrahman7943]

dude ur boss.......very very helpful.

[@DeepakKumar-dy5hw]

Arif Rahman

[@ricobanderas7281]

Thank You and Happy Independence day!

[@LearningLad]

Same to you :)

[@deepak3303]

Hi, What is need for using int main() for printing a string? Please explain

[@LearningLad]

deepak chowdarymain function is the starting point of your program or in other words the execution of your program starts from the main function.Inside the main function we have the printf() function which is used for console output. Please watch the tutorial completely because i have explained all these things in it :)

[@kishorkumardas4609]

What compiler r u use sir??

[@sujashrocks3576]

can't we use "void" as a data type for the main function in c programming.....as we can use it in c++ programming? if yes, my compiler must be at error......plzz reply.

[@aryanbharadwaj2286]

I am using turbo C7 for programming, does it make any difference?

[@jabyerre]

Hello. Is possible in C convert text into voice synthesis Google? I searched for information and just explain to do in Android Studio.

[@ROCKINGHISTORY]

hi mr anil iam using win 7 whenever i complie the program it shows done for the first time then my antivirus shows trojan in the folder i saved my programm and delets the complied file then whenever i try to run it it shows source file not found help me

[@903govind]

ty bro but why should we use return 0; why not other value than 0

[@LearningLad]

govind rao When you declare your main function as "int main" it means that "main function will return integer data type". So we are using the return statement to return an integer value(in our program it is 0 means our program succeeded, any other value means our program exited due to some error or anomaly. It's like the error code). Some compilers accept and compile the code even if we don't return an integer value. because that'll happen automatically when main terminates. But it is good programming practice to use return 0 and make sure that your main return a known value. if main is declared like "void main", then there's no need of return statement. But it is not allowed in C and C++ standard. But some compilers(non C, C++ standard compilers) allow it. It varies from compiler to compiler. Hope this helps :)

[@903govind]

tnx bro damn helpful

[@bopon4090]

i m using windows 10 to open devc++. i get G++.exe stop working problem what should i do now to fix it?

[@LearningLad]

thats because the dev cpp ( bloodshed ) which you have installed has some issues in windows 8 or later versions. uninstall it and then google for orwell dev cpp and then download and install it.

[@bopon4090]

thank you sir

[@telanganareporterss]

ya same problem

[@gopiselvamrgs4726]

me too the same problem(running after compilation)

[@anishnair9891]

Hi sir i installed orwell dev cpp and executed the program but i didnot get the display is there any particular setting that i am suppose to make ??? it shows 0 errors 0 warnings ..kinldy hlp

[@mellamo_sachin]

which version of dev c++ software should i use for windows 10. ? currently i m using 4.9.9.2 of that and its showing error.

[@LearningLad]

download and install orwell dev cpp

[@Smile-lp4ds]

there are so many links what can I use?

[@ixdoi]

"Source file not compiled". is there is another way to open it with dev c ++ I don't want to use codeblocks or I have no choice ?

[@LearningLad]

you can download and install orwell dev cpp. it will work

[@ixdoi]

thank you for the fast replying & tutorials

[@shauryapatil295]

Hi, I did exactly the same way u've shown on Dev c++ but it won't run the program saying the source file isn't compiled idk what to do.

[@LearningLad]

sorry for late reply. the dev cpp which you have installed has some issues with windows 8 or later version of os. download and install orwel dev cpp. it will work. (i have also added an annotation about this in the video. you might have missed that)

[@abinash138]

why should we use return statement? what happens if u dont use it??? plz reply

[@the_goddess5654]

Hi there. Thank you for the video. I do not understand where the 'compiler' button is. Can you please guide me in that ?

[@LearningLad]

+shreya gupta sorry for late reply. Go to Execute and then click on Build and Run :)

[@LearningLad]

+shreya gupta It will compile and then run your program :)

[@jayprakashjaiswal4369]

Don't give up ,one day your Chanel will fomous

[@LearningLad]

sure. will be remaking this video series.

[@calitherenhicka5209]

What's the difference between void main( ) and int main( )??

[@vibunkumarvs5744]

i am unable to download the compiler u mentioned in the previous video .. Please help me in this concern

[@LearningLad]

+Vibunkumar V S Download the Orwell dev cpp just do a google search and you will find download link.

[@pjmaths4427]

#include #include void main() { clrscr(); printf("hello world"); getch(); } hope it helped :)

[@heenakouser1998]

So are saying every single information clearly thank you.

[@LearningLad]

pleasure :)

[@smjelani29]

How are you saving and compiling the program? You didnt showed it on the screen. You did it from keyboard. 2. Why did you gave space like between line 2nd and 4th and other spaces?

[@soujanya56]

Instead of int main() if we write void main() .... it is showing return type of main is not int .... What is that all about ??????

[@21ujjwalmishra]

Why are we writing 0 in 'return 0' and not some other integer inside the bracket?

[@gnanam5933]

by following your lectures can i program all programs easily >

[@a.niranjan1858]

Hello. I installed v5.11 , but after completing the program it is showing an error that "[Error] expected declaration specified or '...' before 'printf'

[@a.niranjan1858]

hey i solved the problem , by reading all the other comments. Anyways thanks for the tutorials.

[@LearningLad]

:)

[@MuhammadAsif-bo8os]

Excellent Work

[@LearningLad]

Muhammad Asif thank you :)

[@joshuaurbanski7488]

hi, i use windows 8.1 and got the same problem everyone else is having, u said u made a tutorial for what to download to fix the problem but i cannot find the video. would you mind posting a link to that tutorial it would be much appreciated

[@LearningLad]

hi Joshua Urbanski, check out Downloading and Installing CodeBlocks IDE for C and C++ -03- C++ Programming Video Tutorial

[@maulikchaudhary9665]

sir wat dose that "return 0; " means hera??????????????

[@LearningLad]

Maulik Chaudhary, The declaration int main () says that main returns an int value. You have to return an int value, otherwise the compiler is going to complain. What value you return in a main function depends on what you want to communicate with the code that called main function in the first place. In this case return 0 means that execution was successful and there was no error.

[@jiyarahman2673]

what i have to do when it shows source file not compiled when i give run???

[@LearningLad]

+Jiya Rahman just download and install orwell dev cpp. The current one you have installed has some issues in windows 8 and later versions of os

[@AdityaKumar-ee7vk]

hi i compiled the program without writing the return 0.it is compiled.can you please tell me what is the use of return 0 in this programing

[@balagopalbehera5671]

How I will compile and run the code?

[@LearningLad]

hi Balagopal Behera i have explained that in this video :)

[@kingdomofh2a2]

Balagopal Behera You can do it by pressing f9 for compile and f10 for run

[@jaituteja9005]

what is different between int main and void main?

[@username-zg8og]

Sir,why I am getting an error saying 'main must return' if I use void main instead of int main? ( I did not use return 0 when I use void main)?

[@dalenaleon9999]

Why did you downloaded codeblocks and mingw if then you are just gonna use dev c++???

[@axolotl8316]

excellent tutorial

[@LearningLad]

Thanks:)

[@saurabhde-wan9567]

why do we use # before including the header file?

[@sanchareechattopadhyay8768]

Sir I did exactly the way you said but even after compiling a message appears on the screen "source file not compiled " when I try to run it .

[@LearningLad]

The dev cpp which you have downloaded( blood shed dev cpp ) has some issues in windows 8 or later versions. So Uninstall it and then download and install orwell dev cpp ( just do a google search and you will get the download page ). ( I have added an annotation about this but you may have missed it )

[@sanchareechattopadhyay8768]

Now its working .... thank you sir ..

[@rafarooqui]

I am running this dev c++ compiler on WIndows 8.1, it is compiling correctly but now showing any output. is there any compatibility issue with windows 8.1??

[@LearningLad]

+Riaz Farooqui use orwell dev c++. sourceforge.net/projects/orwelldevcpp/

[@rafarooqui]

+LearningLad same result still not showing any result. is there any possibility that the VIRUS SCANNER on my laptop stopping it?

[@LearningLad]

Riaz Farooqui Do u get any messages saying a potential virus or something is detected??

[@rafarooqui]

Yes only first time when I tried to ran my app, it says some console* has potential virus, then after that it is not showing any error nor showing any output.

[@pankajtanwar4786]

when do we right scanf ????

[@LearningLad]

+pankaj tanwar scanf() is used for receiving input :)

[@rukhsarkiran5218]

Is use of "return 0" is necssary?

[@mohdshahfaisal2981]

Rukhsar Kiran in case of int main() must

[@rukhsarkiran5218]

ok thnx

[@m1kerb1ker27]

your videos are helping me a lot, thank you very much for making this simple and helpful videos you are awesome ;)

[@mohammedsaeed3742]

HEY ...how to launch This GNU compiler to write the programme

[@LearningLad]

you can write the program in a text editor. if you are using an ide then use the text editor which comes with it.

[@shakti051]

Sir, How to change font size and colour. Thanks........ Regards..........

[@ankithprabhu4552]

Anil bhaiya, why dont u use a ";" in the main function?? what are "parameters" that u had mentioned to be passed in ( ) please reply great job bro B)

[@smilygupta4879]

sir why we use int main instead of void main

[@harshavardhanupputuri6211]

Why u used return 0 what's the diff if we use return 1

[@ashishakshantal1868]

how to compile and run??? please help me out

[@LearningLad]

+Ashish Akshantal i have explained in the video. if i'm not wrong, u can press f9 key to compile and run :)

[@bsthishvarma]

why we should we write return 0 in the program

[@umangshrestha6673]

Sir I am sooooo soooo soooo thanksfull to you .......you are really doing a great job

[@LearningLad]

glad that my tutorials are helping you :)

[@aryanbharadwaj2286]

When I run the program, the text i entered in printf gets printed an unlimited number of times. What could I be doing wrong? I'm using TurboC7.

[@boro3775]

Use turbo c++

[@MrVivianwilliams]

Why did you add int main()??

[@LearningLad]

+Vivian williams main is the starting point of a c program. a c program must have a main function.

[@shehzan9263]

what is the key to save and compile

[@SahithNayudu]

When I compile and run the program I get a "warning: source file not compiled" What should i do? can someone help me? i am using Windows 7

[@LearningLad]

Sahith Nayudu sorry for late reply. dev cpp is not updated these days. So update to a new ide called codeblocks. Here is the link to the video which explains that. kzbin.info/www/bejne/g3Wtaqh7fambnLc Hope this helps :)

[@pavithrasori8416]

from where i open c++ compiler please anybdy help me

[@LearningLad]

kzbin.info/www/bejne/sKS1o5KHp8loitE

[@Harshadsarswa]

thank you sir for ur videos great work

[@LearningLad]

Harshad Sarswa my pleasure man :) thank you :)

[@wrbeasts9030]

learing new laungues is too fun !

[@hirshitharajee9322]

I have already learnt java but I don't know much about C.....pls tell me how is 'cout 'and 'printh' are different from each other..?

[@hirshitharajee9322]

***** thank q

[@entertainmentdeliveredhere]

hello learning lad when i tried to run my program it is saying SOURCE FILE NOT COMPILED so plzz help me

[@LearningLad]

+entertainment delivered dev c++ has some issues in windows 8 and later os. ( I have added an annotation about this issue in the video and also stated about it in the description. may be you have missed it.) so i suggest you to download and install codeblocks. checkout our video kzbin.info/www/bejne/g3Wtaqh7fambnLc Hope this helps :)

[@entertainmentdeliveredhere]

Thankyou learning lad

[@yokeshwaran7305]

If i use clrscr(); in the prg ..it says "Undefined reference to clrscr();" but i have also added conio.h..but it still throws error...Can u help me bro

[@kartick1241]

you have to use system("cls"); clrscr() is not valid anymore they have changed the syntax

[@yokeshwaran7305]

tq 4 ur help bro

[@HarmanSingh-xp2rs]

sir, i click F9 for compile and run but a pop up says "Source file not compiled".plzz help me i am using windows 8

[@LearningLad]

harman singh Dev C++ has some problems with windows 8. So use other Ide's like CodeBlocks or Eclipse. Hope this will help :)

[@phalpriya]

hello sir when I compile my program it shows the status as done but when I run, it says "source file not compiled" what could be the problem :( please help

[@LearningLad]

Phalguna Priya sorry for late reply! Dev CPP ide has some issues with windows 8 and later os. so you can use codeblocks ide for programming in c. checkout kzbin.info/www/bejne/g3Wtaqh7fambnLc to download and install it. Hope this helps :)

[@rprock5]

Sir when I run program it gives me an error source file not compiled Video 3 I am very new to this can you please help

[@LearningLad]

Rutvij Pathak hi if you are using windows 8 operating system then dev c++ has some issues. so i suggest you to download and install code::blocks ide for c and c++. Here is the link of a video which explains how to set up codeblocks. kzbin.info/www/bejne/g3Wtaqh7fambnLc you can try out all of our c tutorials with codeblocks also. It works fine. Hope this helps :) happy Learning!

[@jiritichy6855]

Hello. I am starting self paced learning of C just from KZbin videos, like yours.. And right from the beginning I am not getting few things here: No1: why I need to include :"int main" statement and then "return 0"...where I am actually telling the machine returning the integer 0. Seems like the first statement is not needed, then. What if I say "return 1.20"??? Would it return Integer(and if so, which one?) or Real-the one I comanded...i.e. 1.2???. No2: I would assume, that after printing statement "Hello, learner" the machine will actually print out the 0 (which I commanded with statement "return 0'). But no such thing has happened...which would lead me to think, that something went wrong with my program....And if the machine doesn't actually display the 0 (even if I command it), then why to command it at all??? What good does it do for me, if I cannot visually confirm, that it actually returned the 0...?

[@tuzkiiiii]

+Jiri Tichy This is a month old reply, so i don't know if you actually get why we need the int main() and the return, but i will explain it for others anyway, so the int main() is the "main" function, meaning that we need this function so our program can run correctly, every C program needs a main(), if you don't include it, the compiler will be confused and throws an error at you. about the return 0, the return keyword doesn't mean that you give this value to the program to print it (this is the printf job), the 0 is actually a value that the program returns to the operating system to say that it is done executing and that was no error in the process. This is the simplest way to explain the return value without confusing you about functions and return values, so i hope you know at least its purpose.

[@nandankulkarni5604]

+Jiri Tichy when you 'int main' it means that your main function is going to return a value which is an integer. So when you write 'return 0' it means that you are returning an integer as you had told the compiler that you'll be returning an int. If you don't return anything or if you return 1.20, then this means that the expected value is not return since 1.20 is not an int. This will give an error.

[@maheshdharshanala7483]

just tell me the difference between the mani() and void main() and int main() and int main(void)

[@nandwanigift625]

what's the shortcut key for saving and compiling

[@chandankumar-kv8ko]

pls help... from where i open compiler

[@sravanilasya1417]

sir i download code blocks and how do we use that for c not cpp

[@LearningLad]

while creating project, you have the options for c and c++. at that time select c.

[@abhijeetraj7952]

return 0; ?? Didn't get this command? Why you used only 0 after return keyword? Why can't 1 or 2 or abny other integer? Can You Tell about it more?

[@connectciomer]

Thank u buddy I am glad.

[@LearningLad]

welcome :)

[@bhargavdayal8595]

i am able to compile the program and run it

[@vedanthbaliga]

what will happen if we do return 1; instead of return 0; please explain??

[@elvinjafarli6257]

Nothing

[@jayrajbhaikantrodia9610]

how to provide border lines to the address???

[@abhayankit2878]

hello sir.. there is a problem I am facing...the program I have written is not running,it is showing that 'source file not complied'.......what to do sir????

[@sgt.boris4713]

what if i give return 1 or 100 ??

[@jaiminmodi2715]

after compiling the program i get the same message "source file not compiled". I am using windows 7. Any other websites from where i can download C sofware ?

[@LearningLad]

hi jaimin, You can use CodeBlocks IDE. It is available along with C/C++ Compiler. I have already made a tutorial on it. Pls check it out if u get any problem while installing CodeBlocks. Thank you.

[@SravanKumar-wk3ei]

i am getting error as " Source File Not Compilied ". i tried Orwell dev cpp, I uninstalled and installed twice, i installed Code block as you replied to other comment. But nothiing is Working Sir. So Can I know why and what can i do further to get complile. i am Using Windows 10.

[@sgt.boris4713]

if will happen if i put something in brackets of getch()

[@srivallimaganti2317]

how to complied n run the program

[@vishnuvijayan2882]

sir i am using online compiler where it is showing error for CONIO.H