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Devey you initialize an object from a class has a lot of implications.

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That is how you do it what kind of promises you have to enter in your initialising good as well as you

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know the impact it has on the life cycle of an object.

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So this is an under the creeky talked about the initialization methods and why you have to use them

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and how you have to use them.

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Let's go to ex-cult and the next score.

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I'm going to go ahead and start a new command line tool.

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I'm going to call it initialize.

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I didn't initialize.

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I'm going to go ahead and start a new class.

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So let's call this one again.

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A User class.

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And let's see what we have for it in here.

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I'm actually going to go and add five different attributes to my class.

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So the substitutes are going to be great name you Id not like that you like the photo and email and

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to declare all of them I'm going to use de-friended ways of doing them because each of them has to be

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initialized in a different way.

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So this isn't exactly a scientific way of doing some of these might be said in different ways.

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But for now I think the way you're going to do with this kind of making sense.

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So for rape I'm going to say it's a variable is mutable.

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It is of the type float.

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I'm going to say it has to be 0 at the beginning.

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So when you are initializing a user it's current rate should be zero.

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Then I'm going to go ahead and say there is a name and the name is a string.

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And that's about that.

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It is not optional.

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It has to be initialized at some point.

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Then I'm going to go ahead and say that is a viable ID which is a string.

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It is an optional but an option that I know really soon it is going to be set.

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So we have to really set it really really almost immediately after the initialization.

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Then I have another one called variable for thought which is a name of a string and that is optional.

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I don't know if my user has a photo or not.

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And then finally I have something that is a list.

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It is a static value.

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It's a constant.

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Is not going to change what we have to set it at initialization.

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So then the right is really quickly.

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So rate is set at default and then name is not optional.

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And then I have the new ID which will be set real soon almost immediately photo which is completely

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optional and I have an email which is Konstanz what can be set up in it.

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So what does it mean.

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It means that we have these five attributes.

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And let me see how many of them are name which is not an option.

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And email which is not an option I should have mentioned that not optional.

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These two have to set.

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No matter what the others.

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We can just leave them for now and then decide about them later.

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Now excuses is giving me an error or saying that your class has no initializers So let's go ahead then

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add an NGO.

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I'm going to say in it and in the unit I know two things that they must be there.

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So one of them is this that Mary you know or there are things so kind of makes more sense like that.

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So you might I say input's name which is going to be a string an input e-mail which is again going to

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be a string and whatever that it does I'm going to say self that e-mail is input E-Man and self-caused

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name is going to be input name.

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So now I have one in it that initializes the tool guys that are not optional.

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Everybody else you know we could deal with them later on.

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Now if I go ahead and say that my user is going to be user is going to say well we do like to initialize

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it be dismantled.

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And this is now the only method that we can use to initialize our users simply because they have overridden

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that any it we can't use this anymore.

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Now sometimes not just sometimes a lot of times you have situations that you have more than one kind

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of in it.

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Imagine this my array is N.S. are a dot in it.

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And then in the net as you can see we have multiple different types of in it's in it's with an array

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in it with an industry in it for the Khoder object things that you know some of them we know what they

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are some of them we don't know what we are.

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So we have to actually choose which one of these you know anything you want to use and what I want it

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to have that for my user stuff going here and say well there is another in it.

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And in the other end it the two things that there must be there they are there.

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Nobody is going to have a question about them.

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But I also haven't put forth all which this time it is there.

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And these two things happen as they should.

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And then self-taught photo gets to be input for as.

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So now if I try to make a user if I go in here and say like my user is going to be user then I have

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to what we call flavors of dysfunction two different ways of triggering in it.

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One of them would need to like humans.

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One of them would need three arguments.

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Let's choose this one input name an input email or both are empty.

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And that's pretty much about it.

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So we have two or three or 10 or hundreds of different types of minutes and then we have attributes

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we have to know whether they're optional or not optional.

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If they're not optional they have to be somewhere within our in it or they have to have a default value

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such as this one.

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And then we have to write the body off or in its methods and then depending on our use we can use this

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one or the other one or any other one.

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There is one kind of initialization that's got a convenience in it.

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I should have mentioned that these guys are card designated in it's so that the designator then it also

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has this one.

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And then the next listener we're going to talk about a convenience and it and it that helps us you know

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be special cases and so on.

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So I assume that then.