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OK, if you just want to read and display data from a class file, you probably don't need any fancy class hierarchies, you can just follow the structures described in the docs. Once you have something...

Again, it depends what you want to do with these objects, how you want to use them. Without knowing that, I'm just guessing. The idea with generics and/or polymorphism is that you write the code so...

I'd be inclined to use an enum for the tag values, but other than that, it's hard to say - if you don't know what you're doing this for, how can we suggest the best way to go about it? Maybe you need...