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java offers composition, like pretty much all programming languages if you have a person class and you have students and teachers the correct thing to to is N

by bedobi 2y ago

java offers composition, like pretty much all programming languages if you have a person class and you have students and teachers the correct thing to to is NOT to make student and teacher inherit from person it's to make student and teacher have a person attribute + the other attributes that constitute a student and teacher respectively

kuang_eleven 2y ago
"correct" is certainly not the right way to put that. Inheritance and composition here are both fully valid methods for modeling the relationship, and the decision to use either should be dependent on how the models are being used and the expectation for future extension.
angiosperm 2y ago
By "correct" here you only mean fashionable. Either approach works. Each has its merits and its costs. Any big enough system will have parts that are most sensibly built object-oriented, and other parts that are more reasonably functional, plus anything else you can think of.