- There Is No Difference In An Abstract Class With Only Abstract Methods And An Interface True False The Interface Of Th 1 (9.54 KiB) Viewed 50 times
The (Iterator) interface of the Iterator design pattern has which of the following methods?
(check all that apply)
- There Is No Difference In An Abstract Class With Only Abstract Methods And An Interface True False The Interface Of Th 2 (16.53 KiB) Viewed 50 times
Consider the following code:
interface Device {
void turnon()
System.out.println ("turning on device") ;
7
}
class Phone extends Device {
@Override
void turnon){
System.out.println("turning on phone") ;
}
7
class Program {
public static void main(String[] args) {
Device device = new Phone) :
device. turnon();
}
}
Which of the following statements is true? (check all that apply)
- There Is No Difference In An Abstract Class With Only Abstract Methods And An Interface True False The Interface Of Th 3 (34.27 KiB) Viewed 50 times
There is no difference in an abstract class with only abstract methods and an interface. True False
The interface of the Iterator design pattern has which of the following methods? (check all that apply) iterator0 hasNext() next() iterate0 createlterator()
Consider the following code: interface Device \{ void turnon() \{ System. out. println("turning on device"); class Phone extends Device \{ coverride void turn0n() \{ System. out.println("turning on phone"); f class Program \{ public static void main(string(1 args) \{ Device device = new Phone(); device. turn0n(); ) Which of the following statements is true? (check all that apply) The program uses composition. The output is "turning on phone" The output is "turning on device" The program uses dynamic binding. The program produces a compile error. The program uses inheritance: The program uses polymorphism.