Hello! I'm studying java and I've just finished interfaces and abstract classes, I'd like to ask if anyone has from a textbook or other sources (or created individually) an exercise to test my knowledge on this topic. From the book I'm studying from there is already an exercise but already done from the text to better understand the topic and now I would like one to practice and understand the topic better. I've done interfaces, abstract classes, classes, objects, methods, but NO arrayList (of course also all the bases such as scanners, variables, cycles, arrays, etc)
#exercise with interface
unique night
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unique night
exercise with interface
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