Quiz

1. Can Scala be considered a pure OOP and functional programming language?

a) Yes, Scala is both a pure OOP and functional programming language

b) No, Scala is a pure OOP language, but it cannot be considered a pure functional programming language

c) No, Scala is a pure functional programming language, but it cannot be considered a pure OOP language

d) No, Scala is neither pure OOP, nor a pure functional programming language

 

2. Will this code compile? If not, why?

        class A { def method1 = {} }
        trait B { def method2 }
        trait C { def method3 }
        abstract class D extends A with B with C { }

a) Yes, it will compile and run correctly

b) No, traits need to be implemented using the implements keyword

c) No, class D does not implement the methods from class A and/or trait B and trait C

d) Answers b and c are correct

3. What's wrong with the following class definition?

        public class A

a) This class will compile fine; nothing is wrong

b) It will not compile because no body (= { ...