Lab 8: Passing data with structs and classes
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Instructions
This lab will give you experience using structs and classes in C++. There are two parts: in the first, you will create a program that uses structs to store information about something of your choosing; in part two, you'll update that code to use a class with methods instead of a struct.
Part 1: structs
In this part, you will make your very own struct. You'll need to come up with an object type that can be represented as a struct and that you can create instances of. For example, in class we saw a struct called Student, which represented a generic student. We could then create an instance of Student for a specific user (e.g., a student named Joe, another named Amanda, etc.). Come up with a different object type from those we've used in class or that are in the Classes/Structs topic page. If you're stuck, here are some suggestions: a movie, a grocery item, a song, playing cards, sports teams, etc. Don't feel limited to those!
Once you've picked an object type, follow these steps:
- make a new file called lab8-part1.cpp
- pick a name for your struct
- define your struct—you should have at least three fields
- create a function to create new instances of your struct—it should take one parameter per field in your struct and return an instance of your struct
- create a function to print out an instance of the struct
- in main, create three instances of your struct using the create function from above
- print out each instance using the print function you created
Use this template to get started:
Part 2: classes
In this part, you'll modify your part 1 to use classes instead of structs. It'll be helpful to check out the Structs/Classes topic page. Follow these steps:
- copy your lab8-part1.cpp to a new file called lab8-part2.cpp
- convert your struct to a class—check out the class notes and the topic page on Classes/Structs
- modify your code so that the print function is a method inside of your class; update your code in main accordingly
- remove the function to create new instances of your class, and instead create a constructor for your class—see the topic page on Classes/Structs for the syntax for a constructor; be sure to update your code in main to use this constructor
Submission
Submit your .cpp files to here. You can view the rubric here.
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