the programming language is java

xiii. Briefly describe the differences between an abstract class and an interface. xiv. Briefly describe the similarities between an abstract class and an interface. xv. If a valid class implements the Comparable interface but does not override the compareTo method, what can be said about the class? xvi. Explain why a class cannot be both abstract and final xvii. Briefly describe the differences between method overloading and method overriding xviii. What is super in Java? xix. Briefly describe the use of super in a constructor. xx. In a method body, what is this and what can you do with it