Chapter 18.3, Problem 18.14CP

Explanation of Solution

Bounded type:

“No”, the type to a set of boundaries cannot be constrained by both extends and super.

Explanation:

• The keyword super, and extends are used to restrict the type parameter.
• A type to a lower bound is constrained by the keyword super.
• A type to an upper bound is constrained by the keyword extends.
• In order to declare the lower bound type parameter, the developer list the name of type parameter, followed by the keyword super, and by its lower bound.
• Example-1:
  • <T super Integer> represents type argument of an object as an Integer.
  • It is also used to represent the type that inherits Integer and also it is represented as a superclass of Integer.
  • In class hierarchy, T can be any type that is represented above the class Integer...