Fill in the missing keyword to indicate a class inheriting from a interface: public class MyClass MyInterface {
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- In Java, which of the following is false? An abstract class may implement an interface. A class that contains an abstract method must be declared abstract itself or a compiler message will result. A class may implement multiple interfaces. A class that extends another class may implement only one interface.Describe a benefit from requiring class to implement an interface.Interfaces are used to define stronger is-a relationships because one class can inherit multiple interfaces. Ture or false
- Abstract classes and interfaces can both be used to specify common behavior of objects.How do you decide whether to use an interface or an abstract class? Explain youranswer.Give me a code example where you can decouple the classes with the help of Interface? II. Give a code example to show the difference between an abstract class and Interface? III. Give a code example to show the implementation of Abstraction Principle?In what ways are interfaces advantageous? The creation of objects of a certain class seems more straightforward, doesn't it?
- Let's pretend you have a method that takes a superclass object as an argument. If you provide it an instance of a subclass instead of a superclass instance. How about the adequacy? You seem confused as to why it is.Explain why you prefer interfaces over abstract classes.Assume you have a method that needs an object of the superclass as an argument. In this situation, you should provide it with a subclass object rather than a superclass object. Is it appropriate? Why do you believe that?