📚 Learn how to solve problems and build projects with these Free E-Books ⬇️ C++ Lambdas e-book - free download here: bit.ly/freeCppE-Book Entire Object-Pascal step-by-step guide - free download here: bit.ly/FreeObjectPascalEbook 🚀📈💻🔥 My Practical Programming Course: www.codebeautyacademy.com/ Experience the power of practical learning, gain career-ready skills, and start building real applications! This is a step-by-step course designed to take you from beginner to expert in no time! 💰 Here is a coupon to save 10% on your first payment (CODEBEAUTY_YT10). Use it quickly, because it will be available for a limited time.
Code change: void readFileText(std::string myFileChoice) should have been coded as : void readFileText(const std::string& myFileChoice) so it isn't a copied string causing a heap allocation and therefore running much slower and taking up more memory.
You described how to do all this in 20 minutes, what my school book took a million pages to describe. (Give or take a few hundred thousand pages.) Thank you!
Hey I commented in your last video and I said I was going to have a exam in c++ . I managed to get a 10/10 max score, thank you very much for helping me personally it was such a great journey through these series.
I’ve been having the doubt of how read and write from a file for weeks because my programming professor did not explained as good as you. You were the light that lit the way for me because I needed it for a project. Thank you Saldina!!
In order to explain something, a person needs to have both a good knowledge and understanding of what they're explaining AND an ability to bring that understanding down to a comprehensible level or, in other words, to bridge that gap between deep understanding and no idea about how something works. Many teachers and professors seem to lack either one, two or all of the three qualities above.
Saldina thank you for making this concept easier to understand. You are definitely an inspiration and I hope to be as great at programming just like you someday.
My solution for the 1st challenge, converting a story to cipher and deciphering back the code in the console: #include #include #include using namespace std; int main() { fstream Myfile; // Taking the input string from the user string story; cout
I think you can skip the "Converting the string to character array" part, as a string is basically already a character array (and there are ways to iterate over each character contained in the "string" object, as you also have used, so you could use directly that when you do the "int(...)" cast when writing into your file ). Also it's funny that since you concatenate the numbers in the file without any (non-number) separators between each of them, then when you read back your file you need to do the funny calculation.
Hey just wanted to say thank you :) Your formula for deciphering the text helped me a ton. I was stuck getting my program to decipher the text but thankfully I discovered your comment and so the formula which provided a ton of help :)
my course constructors ignored this chapter even in exams last semester , now that i want to make my own project i realized how important this topic is
I recently started to work on a project which is in C++. I literally knows nothing about C++ and came to you channel. You literally saved my work... Please continue doing this! Many thanks!
3:20 @CodeBeauty Yes the ".txt" extension is just to make Windows' shell use whatever default program to open these text files. But otherwise, any extension is good as well. The important point however is that, used as such, the fstream::open() function opens files in **text mode** by default, unless one ORs the second parameter (the mode) with ios::binary. This is important, because the default text mode is "translated" in the sense that depending on the platform you run the code, the end-of-line character being issued in the file will be different ( on *nix, on mac, on Windows), even if you just use " " (without " ") in the code.
Thanks for taking the time and contributing with your knowledge. ☺️ I appreciate it and I'm sure that it will be helpful for anyone who is looking for tips and additional info in the comments! ☺️☺️
IT HAS BEEN DAYS OF HARDWORK THAT I PASSED THROUGH IN ORDER TO GET MY FIRST APPLICATION, WHICH IS CONCERNED TO BE THE END OF THE YEAR FINAL PROJECT BY YOUR ENLIGHTENMENT; YOU MAKE ME SO HAPPY BECAUSE I COULD SOLVE MANY PROBLEMS THAT I FACED WITH FILES
Great video! Much better than some sites explications that use other forms, and I'm not so good listening in english, but she speaks so well and I understand. It deserves my like
I am a beginner starting from yesterday. Your videos are so easy to understand. I am going to watch all videos of your channel. i started from your beginner's playlist
So friggin' refreshing...quick, to the point and extremely clear and logical... Nothing I could get from 200+ hours on various coding courses on Udemy.
Gracias por la explicación, es clara y sencilla. Tus videos me son de mucha ayuda para aprender C++. Procuraré realizar las tareas que indicas. Un saludo desde Minatitlán, Ver. México.
Wow, you truly are a code beauty! Thank you for this video, it was an excellent explanation of read/write into text files! Subscribed, can't wait to see your other videos!
I have enjoyed watching you videos. You are truly a good teacher. I have watched C++ file handling, but I would like you to go deeper into file handling with binary files. To be specific, I would like to see you talk about how to copy files in C++ from one place on your hard disk to another. Thank you very much for all of your hard work!
Thanks Saldina, I was waiting for ages for this video. Actually I have a request to make, that if you find the time to do so, make an advance level video about file handling like about reading mixed data (numbers, alphabets, symbols, spaces, without new line) and taking out the specific type of data according to our desire and storing it in arrays, and also more info about functions like getline and putting some conditions in their parameters to ignore specific characters. Me and my friends will be waiting desperately. 🤞🏻🤞🏻
THANK YOU SOO MUCH.very comprehensive and easy to understand.been looking on how to read txt file into c++ for the past few days and no one could explain it as well as you.
Here is my solution to the second challenge with the text file. Please let me know if you see any optimization I could do, or any other modifications. #include #include #include #include #include #include //Structure to store one question and three answers struct Question{ std::string question; std::array answer; int correct; Question(){} Question(std::vector parsedLine){ question = parsedLine[0]; answer[0] = parsedLine[1]; answer[1] = parsedLine[2]; answer[2] = parsedLine[3]; correct = stoi(parsedLine[4]); } }; //Parse the data in each line given a comma as a delimiter std::vector parseCommaDelimitedString(std::string line) { std::vector result; std::stringstream s_stream(line); while(s_stream.good()){ std::string substr; getline(s_stream, substr, ','); result.push_back(substr); } return result; } int main() { //Initialization and input of questions, answers, and answer Question question[5]; //Read and parse data from file using comma delimiter std::fstream myFile; myFile.open("paul.txt", std::ios::in); int j = 0; if(myFile.is_open()){ std::string line; while(getline(myFile, line)){ std::vector parsedLine = parseCommaDelimitedString(line); // Store data from file direct into structure question[j] = Question(parsedLine); j++; } } // Initialization of variables int userAnswer = -1; float total = 0; float PercentTotal = 0; int ansLow = 1; int ansHigh = 3; // Loop for five questions for(int i = 0; i < 5; i++) { //Print out question std::cout = 5){ std::cout
Thank you and wish me luck on my exam in half an hour. I already understand pretty well everything we've learned so far except file reading and writing so lets hope I finally get it. I at the very least get it better than I did before. Thanks for the help
@@CodeBeauty thanks! I think I got the file reading question correct (it’s not graded but I checked it when I got home). It’s another thing I got wrong. Ah well. I got the file reading question right so that’s good 👍
I wish I had known your channel sooner, at least 2 years. Your lectures have minimized my study process from 3 hours (on my uni's class lecture) to just no more than 1 hour.
i have my programming fundamentals final exam tomorrow, hoping for an A , file handling is the only topic left. I hope i ace it but incase i dont, at least i know i gave it my best and learned so much
Very Helpfull videos! Understood a lot more, your way of explaining makes things so much easier to understand, would love to see a video about handling other files like json and csv files!
Hey saldina, it's a request, while explaining the function please explain the all parameters the function talking, all the return values and reasons so it will be beneficial. Examples Like if an functions return 0 on success and -1 on memory failure or -2 in permission errors
@@CodeBeauty dark theme, c/c++/python, ide or terminal, notepad and pencil eraser, few hardware(atmega, Raspberry pi, stm,esp). All time love moments of life. Can u feel it... Can u feeeeeel it ?😂
We can use some thing from number theory so as periodic function or bijective function (one to one )function If unsigned char c = 0 to 255; int crypto = 5 just add to c+crypto =c, some one didn’t now the code he can’t read it By reversing c=c-crypto for every char in file you can read it; This very simple way; we can construct very complex file crypting by use word as whole number like abc=505153; than use some Number theory of division and prime number… We can use congruence c=b[a] ; a
than you should check my Practical Programming Course at www.codebeautyacademy.com It is course in C# (not C++) but concepts that you learn as part of it are applicable on every programming language. We are building real desktop application and you will be learning alongside other students, with me as your personal tutor. With this you will also gain access to exclusive Discord community. I'll be happy to have you there. :)
Your videos are the best explaining that you could find on YT. There are examples and exercises to train you. Btw: will you do videos to show the solutions at your tasks?
It depends if people want me to do it 😁😁 I just reviewed someone's code, and it has a very useful and interesting solution for the homework task. It is in the pinned comment. You can check it out if you need help, but can also solve it in your own way. ☺️☺️
Thank you so much for making this wonderful video. I heavily code in java. I am taking an elective class that requires me to code in C++. I really needed this tutorial.
Thank you maam thank you thank you very much same timing I m already working on it but no much understand this topic after this video I clear my concepts thank you thank you much
![How to use binary files [an updated C++ tutorial]](/img/n.gif)
📚 Learn how to solve problems and build projects with these Free E-Books ⬇️
C++ Lambdas e-book - free download here: bit.ly/freeCppE-Book
Entire Object-Pascal step-by-step guide - free download here: bit.ly/FreeObjectPascalEbook
🚀📈💻🔥 My Practical Programming Course: www.codebeautyacademy.com/
Experience the power of practical learning, gain career-ready skills, and start building real applications!
This is a step-by-step course designed to take you from beginner to expert in no time!
💰 Here is a coupon to save 10% on your first payment (CODEBEAUTY_YT10).
Use it quickly, because it will be available for a limited time.
Thx a lot I think u talented in teaching..
I love this video so much, it helps me a lots. Thank you😍
could you do a tutorial on how to delete a row / entry from a file please 🙏☺
Code change: void readFileText(std::string myFileChoice) should have been coded as :
void readFileText(const std::string& myFileChoice) so it isn't a copied string causing a heap allocation and therefore running much slower and taking up more memory.
thanks for this video, I've learned a lot from it
You described how to do all this in 20 minutes, what my school book took a million pages to describe. (Give or take a few hundred thousand pages.) Thank you!
Exactly! Took me ages to try and work this out then I realised why don't I just find a codebeauty video hahaha
And a few thousand dollars.
Hey I commented in your last video and I said I was going to have a exam in c++ . I managed to get a 10/10 max score, thank you very much for helping me personally it was such a great journey through these series.
I remember 🤗
I'm so happy and proud! 🥳🥳💗
Prefect timing, we are dealing with File I/O this week in class
It's going to be an easy class for you. 😁😁
You can read the description of this video for more details. ☺️
same here
same here , next week.
I’ve been having the doubt of how read and write from a file for weeks because my programming professor did not explained as good as you. You were the light that lit the way for me because I needed it for a project. Thank you Saldina!!
You're very welcome! Glad I could help! 🥰🥰
In order to explain something, a person needs to have both a good knowledge and understanding of what they're explaining AND an ability to bring that understanding down to a comprehensible level or, in other words, to bridge that gap between deep understanding and no idea about how something works. Many teachers and professors seem to lack either one, two or all of the three qualities above.
Saldina thank you for making this concept easier to understand. You are definitely an inspiration and I hope to be as great at programming just like you someday.
Big Bro
3 minutes ago
I just love how you make coding so simple, Saldina. You have a great gift. Keep up the good work👏🏽👏🏽👏🏽
Thanks!
I am loving your way of teaching.
Glad to hear that, thank you! ☺️☺️
@@CodeBeauty 🙂
New video from codeBeauty notification, me on the road running as fast as I can to watch it. Thanks Saldina.
You rock! Hope you'll like it! ☺️☺️
@@CodeBeauty The only thing left is, finishing thoseTasks😊 I’ll always check them.
My solution for the 1st challenge, converting a story to cipher and deciphering back the code in the console:
#include
#include
#include
using namespace std;
int main()
{
fstream Myfile;
// Taking the input string from the user
string story;
cout
I think you can skip the "Converting the string to character array" part, as a string is basically already a character array (and there are ways to iterate over each character contained in the "string" object, as you also have used, so you could use directly that when you do the "int(...)" cast when writing into your file ).
Also it's funny that since you concatenate the numbers in the file without any (non-number) separators between each of them, then when you read back your file you need to do the funny calculation.
Hey just wanted to say thank you :) Your formula for deciphering the text helped me a ton. I was stuck getting my program to decipher the text but thankfully I discovered your comment and so the formula which provided a ton of help :)
Hi can anyone explain me the working of the decypher loop. I am not quite getting it. I didn't get the formula
num = num * 10 + (line [i]- '0');
could you explain the formula
num = num * 10 + (line[i] - '0' );
Hey bro your code is awesome...Could you explain the calculations for the deciphering pls
Hi Saldina! Thanks for your great videos. Going to watch them all🙏
That is awesome. You are so welcome! ☺️☺️
my course constructors ignored this chapter even in exams last semester , now that i want to make my own project i realized how important this topic is
Best teacher i ever had.
Receive my greetings from Mozambique, Maputo.
Thank you so much for your dedication put into these videos. They make learning c++ so much easier and enjoyable!
I recently started to work on a project which is in C++. I literally knows nothing about C++ and came to you channel. You literally saved my work... Please continue doing this! Many thanks!
3:20 @CodeBeauty Yes the ".txt" extension is just to make Windows' shell use whatever default program to open these text files. But otherwise, any extension is good as well.
The important point however is that, used as such, the fstream::open() function opens files in **text mode** by default, unless one ORs the second parameter (the mode) with ios::binary. This is important, because the default text mode is "translated" in the sense that depending on the platform you run the code, the end-of-line character being issued in the file will be different (
on *nix,
on mac,
on Windows), even if you just use "
" (without "
") in the code.
Thanks for taking the time and contributing with your knowledge. ☺️
I appreciate it and I'm sure that it will be helpful for anyone who is looking for tips and additional info in the comments! ☺️☺️
Thanks! 😊
IT HAS BEEN DAYS OF HARDWORK THAT I PASSED THROUGH IN ORDER TO GET MY FIRST APPLICATION, WHICH IS CONCERNED TO BE THE END OF THE YEAR FINAL PROJECT
BY YOUR ENLIGHTENMENT; YOU MAKE ME SO HAPPY BECAUSE I COULD SOLVE MANY PROBLEMS THAT I FACED WITH FILES
I'm happy that I was able to help! Great job on your side as well! 🥰🥰
explained my 3 lectures from college in 15 mins!! this is so sick because Ive actually understood you better
one of the best channels for learning c++ ,thanks a lot .
I have no word , you are brilliant teacher. I thank you!!!!!!!!!!!!
I have an exam on Object oriented programming in less than 2 hours and these videos are a life saver :- )))
Good luck 🤞
Great video! Much better than some sites explications that use other forms, and I'm not so good listening in english, but she speaks so well and I understand. It deserves my like
🥰🥰
I am a beginner starting from yesterday. Your videos are so easy to understand. I am going to watch all videos of your channel.
i started from your beginner's playlist
One of the finest C++ Tutorials in UA-cam. Keep up the good job...
Thanks Sister , for Muslims تقبل الله صيامكم
Ramadan Mubarak to all Muslims! ♥️♥️♥️
I I appreciate that. Thank you.
امييين
Thanks Saldina. Your lectures are excellent and presentation best I have seen on YT.
normally these videos stress me out but your tone is so calming
So friggin' refreshing...quick, to the point and extremely clear and logical... Nothing I could get from 200+ hours on various coding courses on Udemy.
Gracias por la explicación, es clara y sencilla. Tus videos me son de mucha ayuda para aprender C++. Procuraré realizar las tareas que indicas. Un saludo desde Minatitlán, Ver. México.
Hola Mexico! De nada, y muchos saludos! 🇲🇽💚🤍❤️
I do really appreciate your time and effort. Thanks a lot for your content! You got the best channel on youtube to learn C++!!!
🥰🥰
Wow, you truly are a code beauty! Thank you for this video, it was an excellent explanation of read/write into text files! Subscribed, can't wait to see your other videos!
I have enjoyed watching you videos. You are truly a good teacher. I have watched C++ file handling, but I would like you to go deeper into file handling with binary files. To be specific, I would like to see you talk about how to copy files in C++ from one place on your hard disk to another. Thank you very much for all of your hard work!
what a capable software engineer you are saldina.confidentialy i can say my teacher .thanks
you are my fav at all u are wonderful !!
YESSS these tasks are so good!
Thanks Saldina,
I was waiting for ages for this video.
Actually I have a request to make, that if you find the time to do so, make an advance level video about file handling like about reading mixed data (numbers, alphabets, symbols, spaces, without new line) and taking out the specific type of data according to our desire and storing it in arrays, and also more info about functions like getline and putting some conditions in their parameters to ignore specific characters.
Me and my friends will be waiting desperately. 🤞🏻🤞🏻
Excitedly waiting for your STL playlist... 😀
Saldina is back🎊🎊🎊🎊👌👌👌👌Namaste didi..... You are on time , Wednesday... I respect your discipline..... thankyou didi 👌
I try to be disciplined 😁
Thank you so much! 🙏
absolutely beautiful ...finally understood file handling
you explain really good and really easy to understand
Thanks for your efforts Saldina! Really instructive content demonstrated simply and briefly.
My pleasure! ☺️☺️
I cannot believe that I finally understand this, I'm gonna cry😭. Anyway let me get started with the homework you gave us
This has been a great help once again, thank you!
THANK YOU SOO MUCH.very comprehensive and easy to understand.been looking on how to read txt file into c++ for the past few days and no one could explain it as well as you.
It's magnificent!
You are so welcome! 🙏
Here is my solution to the second challenge with the text file. Please let me know if you see any optimization I could do, or any other modifications.
#include
#include
#include
#include
#include
#include
//Structure to store one question and three answers
struct Question{
std::string question;
std::array answer;
int correct;
Question(){}
Question(std::vector parsedLine){
question = parsedLine[0];
answer[0] = parsedLine[1];
answer[1] = parsedLine[2];
answer[2] = parsedLine[3];
correct = stoi(parsedLine[4]);
}
};
//Parse the data in each line given a comma as a delimiter
std::vector parseCommaDelimitedString(std::string line)
{
std::vector result;
std::stringstream s_stream(line);
while(s_stream.good()){
std::string substr;
getline(s_stream, substr, ',');
result.push_back(substr);
}
return result;
}
int main()
{
//Initialization and input of questions, answers, and answer
Question question[5];
//Read and parse data from file using comma delimiter
std::fstream myFile;
myFile.open("paul.txt", std::ios::in);
int j = 0;
if(myFile.is_open()){
std::string line;
while(getline(myFile, line)){
std::vector parsedLine = parseCommaDelimitedString(line);
// Store data from file direct into structure
question[j] = Question(parsedLine);
j++;
}
}
// Initialization of variables
int userAnswer = -1;
float total = 0;
float PercentTotal = 0;
int ansLow = 1;
int ansHigh = 3;
// Loop for five questions
for(int i = 0; i < 5; i++)
{
//Print out question
std::cout = 5){
std::cout
I'm doing Files in class this week so this perfect
Your truly amazing!! 😍😍😍😍
Your my favorite coder!!
Thank you and wish me luck on my exam in half an hour. I already understand pretty well everything we've learned so far except file reading and writing so lets hope I finally get it. I at the very least get it better than I did before. Thanks for the help
Good luck 🤞🥰
@@CodeBeauty thanks! I think I got the file reading question correct (it’s not graded but I checked it when I got home). It’s another thing I got wrong. Ah well. I got the file reading question right so that’s good 👍
I wish I had known your channel sooner, at least 2 years. Your lectures have minimized my study process from 3 hours (on my uni's class lecture) to just no more than 1 hour.
I'm so glad my videos have been able to help you learn faster and more efficiently! 🤩🤩
i wanty to know why we include system("paused>0")
Awesome explanation. Real beauty in teaching coding. Thanks for great work.
Most helpfull video EVER MADE! No books or documents or teaches can be compared to this! :D
thank you so much, it's so hard to find good answers sometimes even for the simplest of coding questions, you just saved me a lot of headache
Amazing video as always, thank you for inspiring others to code. Much love from USA :)
Thanks. I have been struggling how to do this for several months.
Saved my life for this assignment, thank you!
i have my programming fundamentals final exam tomorrow, hoping for an A , file handling is the only topic left. I hope i ace it but incase i dont, at least i know i gave it my best and learned so much
hey saldina iam from free code camp your video was excellent
Very Helpfull videos! Understood a lot more, your way of explaining makes things so much easier to understand, would love to see a video about handling other files like json and csv files!
That is sweet, only 20 min and everything is clear!
Thank salinda for all the hard work you put in this channel .i'm imad from syria
Very nice you are really a good teacher💯
Thank you so much. You just helped me pass.
You're so awesome! Thanks to your explanation I was able to get my class project done!
side note, what's the wake up reminder that shows up at 2:05 ?
My work start at 8am, and I wake up at 7:30am😁☺️
I always eager to watch your video. Finally I learned the c++ and got a job lately. Thank you so much for your beautifull yet comprehension videos.
You got this!
I'm so proud of you!🥰🥰
It's 1am midnight.. perfect time for code in c++. And files are everything for any project. Starting from config to header, src etc.
So, a night owl 😁
I also enjoy working at night. I believe I started filming this video around 1-2 am 😁🤭
Enjoy!
Hey saldina, it's a request, while explaining the function please explain the all parameters the function talking, all the return values and reasons so it will be beneficial. Examples Like if an functions return 0 on success and -1 on memory failure or -2 in permission errors
@@CodeBeauty dark theme, c/c++/python, ide or terminal, notepad and pencil eraser, few hardware(atmega, Raspberry pi, stm,esp). All time love moments of life.
Can u feel it... Can u feeeeeel it ?😂
thx mam i was struck in a problem and resolved it after watching the video you just save me from embarrassment infront of my fellows
Hi Saldana
We can use some thing from number theory so as periodic function or bijective function (one to one )function
If unsigned char c = 0 to 255; int crypto = 5 just add to c+crypto =c, some one didn’t now the code he can’t read it
By reversing c=c-crypto for every char in file you can read it;
This very simple way; we can construct very complex file crypting by use word as whole number like abc=505153; than use some
Number theory of division and prime number…
We can use congruence c=b[a] ; a
It's that time of the year again, 😅saving the semester. All thanks to code beauty
than you should check my Practical Programming Course at www.codebeautyacademy.com
It is course in C# (not C++) but concepts that you learn as part of it are applicable on every programming language.
We are building real desktop application and you will be learning alongside other students, with me as your personal tutor. With this you will also gain access to exclusive Discord community.
I'll be happy to have you there. :)
nice video, helped me a lot before the exam for revision
Thanks so much I really needed this !!!
thank you very much!
you have been very clear, the method you have shown is also the most "compact" I have foundd
your video helps me for better understanding thankuu
You are really awesome
You're very nice and positive person! Thanks for commenting! ☺️☺️
@@CodeBeauty You are helpful.
Your videos are the best explaining that you could find on YT. There are examples and exercises to train you. Btw: will you do videos to show the solutions at your tasks?
It depends if people want me to do it 😁😁
I just reviewed someone's code, and it has a very useful and interesting solution for the homework task. It is in the pinned comment.
You can check it out if you need help, but can also solve it in your own way. ☺️☺️
The answer to the ques 1 is this :
#include
#include
#include
using namespace std;
int main()
{
fstream file;
//user input
string cont;
cout
Great job going through i/o that was helpful.
you are a life saver
Thank you soo much for this.. The explanation was amatuer friendly.. so it was easy to understand
very well explained
Thank you so much for making this wonderful video. I heavily code in java. I am taking an elective class that requires me to code in C++. I really needed this tutorial.
Great video!!! This helped my with my final project. Thank you.
how to read the file and take the information of the file and compare with user input?
TY, very useful u are the best.
Nice
😊😊
Thanks for liking! ☺️☺️
@@CodeBeauty thanks for all works
You have many skills
😔😊☺
Thank you sis, you really helped me!
Saldina U saved my day. Thank you
😃😃🤗
thanks great video and tutorial
well, your video really clear, thank you for your video
Great video, exactly what I needed, thanks!
Thank you pretty much, This video makes me feel happy.
☺️🥰
All that I can say is thank you very much Saldina.
Learned two things today. The word append and how to append a text file in c++. Thx.
Thank you so much. This was so helpful
very effective approach
Thank you maam thank you thank you very much same timing I m already working on it but no much understand this topic after this video I clear my concepts thank you thank you much
Thank you!! It helped me a lot :)
Very well lesson.I hope,I get high point to exam.Thnx...