five elements that can prove the genuineness of a user: what you know, what you have, what you are, what you do, and where you are. what are these called?

Selective incapacitation is a strategy to reduce prison population

What makes myhexadecimalnumber a child of mynumber? which methods does myhexadecimalnumber inherit directly from the mynumber class? what can an instance of the mynumber class do? what can an instance of the myhexadecimalnumber class do? which methods are overridden? why are they overridden? how many examples of overloading are there? why was this done? where is the super keyword used? what is it doing? why isn’t the incoming value set immediately in the second myhexadecimalnumber constructor? how many examples can you find of an inherited method being called?

How can a user delete a drawing object