Which of the following keywords is used to declare an upper bounded wildcard? a. bound b. extends c. implement d. super

What is the purpose of the "bounded wildcard" in generic programming?Question 2Answera.To restrict the type to a single valueb.To specify an upper limit for the typec.To allow any typed.To avoid type checking

Which of the following lines of code represents the correct syntax to use extends keyword?Options1.class Run { .....}class Sun extends Run { ..... .....}2.class Run { .....}class Sun { extends Run .....}3.class Run extends Run { .....}class Sun extends Run { ..... .....}

Which of the following is not a wildcard type in Java generics?Select one:a. *b. ?c. +d. -

a.It is used to call a constructor of the superclass. b.It can be used to call a static method in the superclass.c.It must always be the first line of code in a constructor. d.It can only be used in a subclass.

Which of the following statements are true? Please select all that apply. Group of answer choicesA subclass is a subset of a superclass.A subclass is usually extended to contain more functions and more detailed information than its superclass."class A extends B" means A is a subclass of B."class A extends B" means B is a subclass of A.