1

00:00:07,670 --> 00:00:09,840

So let's not talk about exceptions.



2

00:00:10,500 --> 00:00:14,270

Well, you know, sometimes our court is producing killers and this is not good.



3

00:00:14,840 --> 00:00:17,780

We don't want to get unexpected errors in our court.



4

00:00:18,050 --> 00:00:25,670

We want always when we run the court to be sure that no matter what happens, we know what the error



5

00:00:25,670 --> 00:00:28,790

is or to expect what there is going to be.



6

00:00:30,660 --> 00:00:37,150

So let's see the following example, let's write items equals int.



7

00:00:39,410 --> 00:00:46,490

Inputs and then type a number of items.



8

00:00:47,970 --> 00:00:50,820

They right to print items.



9

00:00:50,970 --> 00:00:51,420

OK.



10

00:00:52,630 --> 00:00:57,670

Now, let's run this court and see what is basically going to happen, so now we're asking for a number



11

00:00:57,670 --> 00:00:58,240

of items.



12

00:00:58,240 --> 00:00:59,800

But here I will do something different.



13

00:00:59,920 --> 00:01:01,180

I will not put an integer.



14

00:01:01,180 --> 00:01:03,130

I'll put some string is.



15

00:01:04,120 --> 00:01:07,590

So if I run it now, you see that we are getting an error.



16

00:01:07,690 --> 00:01:11,830

And this is because the compiler was expecting that we were going to get.



17

00:01:12,750 --> 00:01:18,720

An integer, but what they actually sent to the function was a string, and for that reason we were



18

00:01:18,720 --> 00:01:19,800

getting a value error.



19

00:01:20,780 --> 00:01:23,300

And if you see this in red, this is not good.



20

00:01:23,510 --> 00:01:26,350

This means that there was something less vigilant protecting your gold.



21

00:01:26,720 --> 00:01:29,270

But how you can figure this in Bitel.



22

00:01:29,600 --> 00:01:33,060

So I will shift this coat and I write try.



23

00:01:33,570 --> 00:01:40,830

OK, so try means that we're trying to statement and then accept a volume error.



24

00:01:41,570 --> 00:01:47,360

So this means that if a value error appears, we're prepared.



25

00:01:47,600 --> 00:01:53,180

So we want to send a message to the user when a value error appears, maybe to give him some advice



26

00:01:53,180 --> 00:01:53,900

what he can do.



27

00:01:55,730 --> 00:01:57,320

So here are right to print.



28

00:01:57,680 --> 00:02:01,730

Your value is not on.



29

00:02:03,030 --> 00:02:03,720

Integer.



30

00:02:05,580 --> 00:02:07,770

So now if I run the code once again.



31

00:02:09,850 --> 00:02:16,680

And if I write the string here, then I'm not getting any Rowbottom advice that I need to put a value



32

00:02:16,960 --> 00:02:22,660

that is an integer, so my value that I put is actually an integer, and this is why it is not deceptive.



33

00:02:23,050 --> 00:02:26,530

But note here that this will not work for any type of federal.



34

00:02:26,720 --> 00:02:28,270

It work only for the value.



35

00:02:28,720 --> 00:02:29,300

OK.



36

00:02:29,320 --> 00:02:34,390

And if we see similar type of error, for example, total 30.



37

00:02:36,210 --> 00:02:40,440

So we showed this to me, the price per item, price per item.



38

00:02:41,790 --> 00:02:48,030

If this is a, quote, total divided by the number of items.



39

00:02:49,370 --> 00:02:58,370

So after you select print item and let's run this quote, so here, obviously if I select items to be



40

00:02:58,370 --> 00:03:01,880

zero, you know, division on zero, it's impossible.



41

00:03:01,910 --> 00:03:07,410

So if I do it, you see we're getting zero division error division by zero.



42

00:03:07,940 --> 00:03:10,180

And here again, we're receiving an error.



43

00:03:10,310 --> 00:03:11,120

And this is different.



44

00:03:11,660 --> 00:03:12,800

That's why we see it in the red.



45

00:03:13,190 --> 00:03:22,430

So in that case, we would like to create another exception so I can separate except and then you can



46

00:03:22,730 --> 00:03:28,370

copy and paste error there just to be sure that it is the exact error that you need to encounter.



47

00:03:28,760 --> 00:03:36,620

So now right print you can not divide by zero.



48

00:03:37,560 --> 00:03:39,960

OK, so if I run this again.



49

00:03:41,510 --> 00:03:46,630

And if I write a number of items to be equal to zero, you can see that now we're getting governments



50

00:03:46,790 --> 00:03:51,410

who cannot abide by Israel and why we need different exceptions for different errors.



51

00:03:51,590 --> 00:03:52,970

Well, this is simply because.



52

00:03:54,820 --> 00:03:58,360

There was a different solution to a different terror invasion, if issue is.



53

00:03:59,020 --> 00:04:03,940

It's not an integer four, is there a division error, then the user will not know what to do.



54

00:04:03,960 --> 00:04:04,300

Right.



55

00:04:05,540 --> 00:04:11,660

It is quite useful when you want sultry or cold very well, and basically create the courts that are



56

00:04:11,660 --> 00:04:12,350

error-free.