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Tag: uml

Understanding how to model UML Class/Database

I’m confused with designing a client software with database integration to what should be a member variable of the class or just a query to the database. Let me be specific with a trivial example: If I have, lets say, a Student class, which has a list of “friends” that are Student objects. Should my software design have an ArrayList<Student>

Using Inheritance like this is right?

I’m student learning Inheritance in Java. I’m making a program (Bitcoin Mining Game). In the program, there are different kind of digger (Mining Machine): ordinary digger (this only does digging coin), overclock digger (this can dig and can overclock to dig faster) and durability recover digger (this can dig, overclock and recover durability (every digger has durability, durability drops while

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