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One of the most popular questions in the interview is, of course, glasses, and you might get a question

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like this design a class for simply, which takes a different name during construction of object.

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And here's a sell at a property.

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So as you can see, we're not getting super strict requirements here, and we have some flexibility

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to implement it.

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This is why I highly recommend you to think about it and implement it in the best possible way.

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So first of all, he'll want to create a class and let's name it, employee, and now as it said, we

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need to have a constructor with the ID and name inside.

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This is why let's create a constructor and we're getting our age and name and after this were signed

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them to this.

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Here is our ID, and this name equals name.

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So we're getting these two properties, but you can do it better because you must show that you're a

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good developer.

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This is why it is really nice to check if we're past inside these two properties.

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So we can just tell, OK, if we didn't pass ID or we didn't pass name, then we want to throw in there.

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This is why I want to throw here New ERA and here inside we can write.

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For example, our employee I.D. and name are mandatory because actually this is what it is seen in the

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task, and it is nice to cover this feature.

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Also, as you can see, we have a line and it has a sell at a property, which actually means we can

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set the salary.

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It's not like we're getting it in constructor, so we need to Serta and get the functions for our salary.

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So first of all, we can define it set salary and it will be a function of a center for salary and we

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passing inside our salary and we just store it inside this.

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So this Dot's salary equals our salary.

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This is not all because we also want to get.

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Yes, sure, the salary is available inside our class, but we really want to construct this class in

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advanced way, which actually means we want to have some public API and some methods to get our properties.

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This is why here I highly recommend it to create get salary and we don't need anything here and we want

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to return here.

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This dot salary, and it also makes sense to create together for our ad and name.

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So here we can create get the method and inside were written in our thesis dot idea and we also can

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create here, get named method and it will return our thesis name.

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So as you can see, we thought quite a lot about our class and it is implemented as best as we can.

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Now here we can try to use it.

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So here we are, creating our employee with new employee and we are passing inside ID and name because

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they are mandatory and actually we can check it.

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We can rely on the page and we are getting employee I.D. and name are mandatory.

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And this is nice to check.

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So here is our eighty-one and name.

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For example, check and now our employee bond through a narrow what we can do now.

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We can write employee said salary and work bison, for example, one thousand inside and now we can

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check it.

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So I will rely on the page and here is our employee with their name and salary, but will also have

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a get us.

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For example, get salary, will return to our salary and get name will return the name, which actually

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means we implemented our class as best as possible.

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But now get getting the second task design a class for manager, which is employee and can have a department

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property, which actually means here your interviewer want to see extend of our class because we can

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create in your class based on our employee class.

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This is way here on the bottom.

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We can create a new class manager.

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And here we want to use extends to take the functionality of our employee class.

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And actually, this is almost it.

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This will take everything from our employee class, but we also need to create a department.

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This is why we just need a center and a getter, just like we did previously.

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So let's create here, said Department.

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And here inside we are passing department or just name.

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And here we are, saving our name inside.

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We also need to get us, so get department and we don't need any arguments here and we want to return

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our Theaster department.

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And actually, it is also super important to have a nice name, several where, as you can see, I am

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not naming things like said or just at full or whatever.

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I really tried to make the names as production ready as possible by using here, for example, said

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department departments.

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So it is all clear what it is about, and it really shows on the interview that you are a good developer

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and you can write high quality code.

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So here we have our said department and get department.

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Now let's create our manager.

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So we're just creating human nature and we must pass inside as always, idea and name, for example,

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John.

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And now here we can check our manager so we can make said department and wear person inside department,

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for example development.

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And now we can check our manager.

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So we haven't said department and there is a GED department function, which will return fire at the

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department.

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This is how typically you will answer questions regarding classes or extension of the classes.