All language subtitles for 14. Exercise 1 - Number of characters in a file [Solution]

So welcome back.

And now basically what we would like to do in this solution is simply given this text file, OK, we

would like to read it and the way we are going to read it is using the F Getsy function to basically

read character by character until we reach the end of the file.

OK, so how will it look like we will create a pointer called FP, a pointer to file and we will use

FP equals to f open reading these file then we will ask FFP does not equal to now.

Then it means that the file was successfully opened.

What would we like to do here?

What do you think?

If we use just one f getsy then probably what we are going to get is just one character.

So we use Algazi, specify the pointer and let's create also additional variable to store our characters.

So let's say Char Maija.

We will say it like this, Maija equals to f getsy F.P..

So this will read the first character, but that's not something that we want.

We want to basically on every iteration to read a character until some condition is met.

And what is this condition?

This condition is until we reach the end of the file.

So how can we specified?

Let's let me show you.

So while while and we will say until we don't reach some condition, which is the end of file and we

have these special EAF and a file specifying we reached the end of the file.

So that's basically also take these Maija inside of these while statement.

Don't don't get scared.

It's not so complicated.

So let's go like this.

Let me explain you in just a second what we've done here.

OK, no worries, guys.

So.

What do we have here?

We have my car getting assignment and input from F. Getsy F.P., getting a character from the file one

after the other and deles while until you reach the end of the file, that's it.

Read a character from a file until you reach the end of the file.

And on every iteration, what I want you to do is to print the character to the screen.

So my char.

My char.

And that's basically all there is to it.

OK, just we need to add the count, but I want to first of all, to run this program to show you that

it works.

OK, so hi, this is Vlad from Alphatech.

And what can you notice here?

You can notice that my getting character one at a time, it also gets characters like H e y and then

he gets characters like space and then it also gets characters like Backslash N.

Because if it wouldn't get the backslash and characters, the new line characters, then what would

happen here is that all of the text from the file would be just in one line.

And you can see that by using these print F percentage C and the backslash.

And right here we jump to the next line, to the next line and so on and so forth.

So the backslash was read carefully.

And finally, I also wanted to create some counter.

So end count of characters equals to zero.

And in this case, every character we are going to count, it's a complex place.

And finally, we will print.

I don't know, the total of characters in the file.

In the file is percentage, the backslash in percentage.

They will be replaced by count of characters.

And that's it.

So let's run it and hope for the best, so, OK, here, we also need to get a better solution, right?

Because at the end of the file, there is no backslash and it ends on just one line.

So it will look like there's no here.

Come here.

There are a lot of characters in the file is 32 and if you will count them up, they should match,

including the backslash and probably.

Right.

So, yeah, this is it for this video.

Guys, thank you so much for watching.

Keep on practicing.

Keep on moving forward and you are bound to succeed until next time.

My name is Vlad.

I'll see you then.