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Before we start, did you try solving the workbook yourself?

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If not, please click the link in the resources folder and follow the instructions for this workbook.

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Welcome to Workbook 7.21.

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Task one is to create a new file named person Java, which is going to contain our person class.

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All right, back to task one.

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The person class will define the following fields so we can just go ahead and copy and paste them.

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Our class, our blueprint will declare that every single person needs to have a name, nationality,

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date of birth, passport and seat number.

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So now, instead of task two, we can create one object of the person class.

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So back in our main class, we will create the main method.

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All right.

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The first object I will create will be of type person.

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I will call the variable person.

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And the person variable will store a reference to a brand new object of the person class.

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This object is going to automatically define five fields, which we can print out right now based on

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the instructions and task two.

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So we will print the person's name.

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We can print their nationality.

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Third date of birth, their passport.

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And what was the fifth one?

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Their seat number.

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I'll spin up a new terminal.

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Java Sea.

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Main Java.

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Java Main.

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All right.

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This is the result that we expect.

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It makes sense that our person starts off by having a name of nul, a nationality of null, a date of

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birth and passport of null and the seat number because it's an integer by default it starts off at zero.

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So task three is to update each field in the object before printing them.

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So here what I'm going to do is say person dot name is equal to.

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I'll just use my own name.

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Person.

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Nationality is equal to Canadian.

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Person date of birth is equal to.

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I'll just put a bunch of random numbers.

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Person dot passport.

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This array is going to contain the name and nationality and date of birth of that person.

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So you might think to use the shorthand initialization that we've been using before.

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So person name.

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Person.

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Nationality.

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New string.

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Then we can say person, seat number and set that equal to something like five.

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All right.

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Go ahead and rerun our code.

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And we are golden.

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There is one mistake that I made and that we should use arrays to string to print the following.

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Go ahead and rerun your code.

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Perfect.

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All right.

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Debug the runtime.

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So here we are creating a new object of the person class.

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The variable automatically stores a reference to that object.

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The object's fields by default start at null and zero.

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Here we update the objects name.

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Here we update their nationality.

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Here we update that person's date of birth.

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Here we update their passport.

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And here we update their seat number.

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And now we're just printing every single field that belongs to this object.

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That's all.

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I really hope you enjoyed watching the solution.