Author Question: In order to determine the type that a polymorphic variable refers to, the decision is made (Read 175 times)

ap345 · **on:** Aug 30, 2020

Question 1

If you instantiate an Abstract class, the class or object you wind up with
◦ is also an Abstract class
◦ is a normal class
◦ is an Interface
◦ is a reference to an Object
◦ can't exist-you cannot instantiate an Abstract class

Question 2

In order to determine the type that a polymorphic variable refers to, the decision is made
◦ by the programmer at the time the program is written
◦ by the compiler at compile time
◦ by the operating system when the program is loaded into memory
◦ by the Java run-time environment at run time
◦ by the user at run time

stillxalice · **Reply #1 on:** Aug 30, 2020

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