Can a polymorphic reference invoke a method that is only declared at the object’s class level? If “yes”, explain how.
What will be an ideal response?
In general, a polymorphic reference can only be used to invoke methods that are known to the class of the
reference variable. In order to call a method that is declared at the object’s class level, the reference variable must be cast to be
of the object’s type as part of the call.
You might also like to view...
The TextBox control is probably the most common control for which you need to write code
Indicate whether the statement is true or false
Choose the sentence that applies correct capitalization.?
A. ?The Fourth of July holiday falls on Monday this year. B. ?The fourth of July holiday falls on Monday this year. C. ?The fourth of july holiday falls on monday this year.
To bypass some ICMP-filtering devices on a network, an attacker might send which type of packets to scan the network for vulnerable services? (Choose all that apply.)
a. PING packets b. SYN packets c. ACK packets d. Echo Request packets
The special address 127.0.0.1 is known as the ____________________ address.
Fill in the blank(s) with the appropriate word(s).