subject

Which of the following statements about type compatibility is true?
an object of a subclass can be assigned to a reference to its superclass without a type cast

assigning an object of a superclass to a reference to one of its subclasses always causes a compilation error whether type casting is used or not

an object of a subclass can be assigned to a reference to its superclass, but type casting is required

an object of a superclass can be assigned to a reference to one of its subclasses without casting

ansver
Answers: 1

Another question on Computers and Technology

question
Computers and Technology, 23.06.2019 10:30
Would a ps4 wired controller work on an xbox one
Answers: 1
question
Computers and Technology, 23.06.2019 23:30
Worth 50 points answer them bc i am not sure if i am wrong
Answers: 1
question
Computers and Technology, 24.06.2019 00:30
Afiling system in which an intermediary source of reference, such as a file card, must be consulted to locate specific files is called a(n) system. a. shelf filing b. direct filing c. indirect filing d. shingling
Answers: 1
question
Computers and Technology, 25.06.2019 06:50
A1-megabit computer memory chip contains many 27 ff capacitors. each capacitor has a plate area of 3.09 × 10−11 m 2 . determine the plate separation of such a capacitor (assume an empty parallel-plate configuration). the characteristic atomic diameter is 10−10 m = 1 ˚a, and the permittivity of a vacuum is 8.8542 × 10−12 c 2 /n · m2 . answer in units of ˚a.
Answers: 3
You know the right answer?
Which of the following statements about type compatibility is true?
an object of a subclass c...
Questions
question
Mathematics, 30.12.2019 13:31
question
Geography, 30.12.2019 13:31
Questions on the website: 13722367