You need to extract data from the system your predecessor created. you discover tables have been created according to the third normal form. you find the needed data in three different tables. what sql syntax allows you to garner this data?
a. union
b. join
c. select
d. having

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?