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int is for numbers that you can use for doing math like counting or sizes
String is for values to be displayed to a user like a name.

We'll help you if you have problems with your code, but we don't write your code for you.
Look at the Tutorial on how to define a class:
The Really Big Index
Search for class and read about how to...

Design some classes to hold the data.
The class should have a name and some variables to hold all the data needed.
The class should have constructors for creating an instance.
There should be...