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We are having a look in the files in C++, which is somewhat advanced topic, and we deep dive into

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it right now.

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Let's go.

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So you know, what is the necessity of using a file, right?

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So we are actually interested in a storage medium for storing our data.

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So it's like examples are like we have taxpayers where we stored our text data.

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We have our document files, which we are using to create out, like using Microsoft word and stuff

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like that.

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We create work files or document files where we store both text, images and data like that and a lot

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of other kinds of files out of there, right?

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This presentation is an example for a file and Excel spreadsheets, which is also an example for file.

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But in all where C++ was prevalent, there are mainly two types of files.

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One must be files or text players, which we use to store that external data.

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OK.

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And another one was binary files, which we use to store like bytes of data.

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It's also similar to text files, but the data format is stored at by another.

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OK.

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What is binary zeros and ones?

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OK.

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So in order to handle C++ files or files in C++, we can create files in C++.

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We can all but the files.

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We can write data and do it, and we can close that.

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So that is the main process is right.

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Like we are concerned while we are using files in C++.

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So usually for creating files we use like our software such as not bad word bad data like that, right?

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But in this case, we can programmatically create files using C++ programming language.

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And in this topic, we are excitedly going to learn that.

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So in order to learn that some key terms you have to understand.

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One is file streams are file handling it, just like writing the file reading from the file or doing

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operations in that file or creating file deleting file.

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Everything comes under the file stream handling our file.

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OK.

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And in order to handle files in C++, we use the header file quite extreme.

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OK.

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And there are a lot of objects or classes inside the extreme darknet chatter file, which will consider

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a lot of functions necessary for handling these files.

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And we can learn about that.

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So one of is offspring.

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It's actually useful for writing two files.

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So if I want to write that way, if you have the use object straw objects off all steam class and in

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order to read the data from if I use, I have stream class.

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And if you want to do both at the same time, you want to write the data to a file and read the data

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from this file.

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Then you use the class card.

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Interesting.

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OK.

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Now these are the main things which we should do, or we should consider while creating a file with

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C++.

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It's not a simple thing.

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We have several steps to do that.

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OK?

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First step is all putting it by before reading or writing to a file.

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We need to open the van in that graph again.

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You set it up.

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It's very easy to open up, right?

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We are seeing the file as I visualized form.

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So you are you can just double click on the icon of that file, then the fly at all times and you can

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see the file.

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That's very straightforward and simple, but we are doing this programmatically meaning to open that

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file programmatically.

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And in order to do that, we have several programmatic courts.

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OK.

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So we can go to the steps first and then the detailed steps later.

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So first step is opening your file, then you can read and write to.

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OK, after that file is all funding the program, you can read from the file or right through that file.

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Then you need to close the file.

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That's the final steps.

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So these are the important steps which we need to do while we have to create that fire.

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So now let's see each step in the update.

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So opening your file?

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Right?

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I have already discussed that either let off steam or steam object can be used to open a file for writing.

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OK.

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And if stream object is used to open a file for reading purposes, if steam can only open the file for

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reading.

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But if you want to open the file for writing.

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Use both of Timor F Street now, how you get one of the file that is used to buy a function, call all.

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OK.

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And it's a member of extreme, extreme and off stream objects.

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OK.

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This function is I like get we are getting this function from the extreme garbage header file.

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And how are you going to do that?

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This indexes void or.

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Then on the bracket, you have to specify the file name, then how you want to burn that file.

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So this is debris dot symbol, right?

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Or Pan Maude Maude.

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This one is called file or binary, more so we will be discussing that right now in the next slide.

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So how you can use this iOS Dot Dot or by more more, then that's actually very useful for you to know

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how what are the different ways you can find and this opening more chapter opening your file in different

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manners?

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OK, see here to have that march off opening.

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So again, if you are opening your file in iOS app more, then that discard app and more so if you open

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a file, walked all things you right into that fight.

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It will be appended to the end of the file.

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See, the other line is you will not be able to see the file like in a graphical user interface.

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So why do you need to do is like you need to specify how you want to use the file in your program.

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So in order for that, you have different types of modes of operating a file.

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And those are specified all here.

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And if it is an app and more water things you write into that file, it will be appended to the end

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of the event in order to help you understand this topic.

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I'm actually going to flag different find for getting the pen.

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And suppose you have a file and daddy, you have this particular thing written.

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Welcome to my new file.

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This was the content of the fight, and if I'm opening the fight in a pen more, then what are things

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you put into the fire?

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Later, it will be come after that last portion of the fair, which means after this new.

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So if I'm adding a few more lines, why this is getting added at the end, because you have opened the

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firing at Benmore, then you have 80 more, which is actually putting a file for moving the read or

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write and burn for the end of the file.

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So this is all just similar to a more like you can do both.

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You can read from the end or write end.

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And if you want to just open the file for a file for reading reading only, then you can use Enameled.

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And if you want to open a file for writing early, then you can use out more.

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And if the fire is already there and you want to believe that file with that very same name, right?

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But you want to believe that file and create a new file with that same name, then you have to use more.

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So suppose this is my file called.

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My final.

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Not ESD.

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This is my file, and this is my file with this gunman.

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And I want to be need all the amendments inside this my pilot and add everything from the beginning.

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Then I will be using try and get more.