Make sure you know the difference between an abstract class and an interface and constructors.
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A: HI THEREI AM ADDING ANSWER BELOWPLEASE GO THROUGH ITTHANK YOU
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A: The answer to the question is given below:
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A: The answer is given in the below step
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- Make sure you know the difference between an abstract class and an interface and constructors.Abstract classes and interfaces may be used interchangeably to specify the behavior of objects.How do you know whether you need an interface or an abstract class?An unspecified data type can be used for both the parameters and the return type just for abstract classes (because they can not be instantiated) just for the signature of a method (i.e., the parameters) O just for the non-signature parts of the method (i.e., the return type)
- When a concrete class inherits from an abstract class, you have to implement all abstract methods declared in the super class before you can instantiate it (the concrete class). True FalseIn-class Assignment Day 8 You should draw the hierarchy for your classes to understand how the coding should be structured. Be sure to notate any classes that are abstract. Write an abstract class for Shape. The intended subclasses are Polygon, Circle, Triangle, and Rectangle. All of these will have a name, an area, and a perimeter. (Consider which methods might be abstract.) Add a toString method that will return the information about the Shape, for example: Triangle, Area: 7.5, Perimeter: 12.0 Write the class Rectangle. A Rectangle is a Shape and should have a width and a height. When a Rectangle is outputted, it should read: Rectangle, Length: #, Width: #, Area: #, Perimeter: # Write the class for Circle. Every circle is a Shape that has a radius. Be sure to provide an accessor method (getter) for the radius. When a circle is outputted, it should read: Circle, Radius: #, Area: #, Circumference: # Write a TestShape class that has the main method, which creates…I have multiple constructors defined in a class. Is it possible to call a constructor from another constructor’s body?
- Write an abstract class, it can be anything well defined from the very basics.What happens if you try to override a non-virtual or final method in a derived class?It is necessary for a subclass of an abstract class to implement all of the abstract methods that are defined for the parent class. Is there a mistake or is it accurate?