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- Can an object in a subclass be assigned to a super class variable? Why?You have a method that requires an argument that is an instance of the superclass, and it expects you to provide it. It will function properly if you provide it with an object of a subclass rather than a superclass. Is it even possible? Where is the value in that?add a class to package that represents your new drivable type. That type should be something that is capable of being driven (speeding up and slowing down) and therefore a perfect candidate for a class that implements the actions in the Drivable interface.
- You have a method that expects an object from the superclass to be supplied as a parameter. If you offer it a subclass rather than a superclass object, it will work. Is it permitted? What's the point?To implement an interface, a concrete class must implement AT LEAST ONE method headings listed in the definition of the interface.Can an object in a superclass be assigned to a subclass variable? Why?
- what is the generic term for a method that creates an instance of a class (constructors?) and how would you call it for a class named MyClass that does not take any parameters?Write the constructor method for class Circle which is a subclass of Shape class. Class Shape has one attribute (color) and one constructor (with one parameter). Class circle has attribute for radius.To implement an interface, a concrete class must implement AT LEAST ONE method headings listed in the definition of the interface. False. True.
- To implement an interface, a concrete class must implement AT LEAST ONE method heading.Create an interface Wheel with methods setWheels (int c) and getWheels () and a class Vehicle with abstract methods getColor () and getBrand (). Now, create a concrete class Taxi with additional method setDriver (String name) that inherits both Wheel and Vehicle. (Note: Concrete classes don’t have any abstract method)What is an abstract class? Choose only one option.(a) An object(b) A class with no methods.(c) A class with no concrete subclasses.(d) A class with at least one undefined message.(e) An interface.