Assume you have a method expecting the superclass's object to be passed as an argument. In this case, if you give it an object of subclass rather than superclass. Is it acceptable? Why or why not?
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Assume you have a method expecting the superclass's object to be passed as an argument. In this case, if you give it an object of subclass rather than superclass. Is it acceptable? Why or why not?
Step by step
Solved in 2 steps
- You have a method which requires an argument of type superclass. It will function if you supply a subclass object rather than a superclass object. Is it permissible? What is the purpose?Explain........... A method defined within a class and whose header does NOT include the static modifier is known as which of the following? a class method b instance method c super method d private method e public methodWhat method is automatically executed whenever a new instance of the class, which the method belongs to, has been instantiated? a. encapsulation b. abstraction c. polymorphism
- 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?Look at the following code, which is the first line of a class definition. What is the name ofthe superclass? What is the name of the subclass?class Canary(Bird):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?
- consider the following declaration for the class method • @classmethod • def set_default_side(cls, s): • cls.DEFAULT_SIDE = s • print(cls.DEFAULT_SIDE) what is the first argument must be? Select one: a. The argument of class. b. The argument of superclass c. The argument of constructor d. The argument of the same functioYou have a method that takes an argument of type superclass object. You may make it function by providing an object of a subclass rather than a superclass. Is that allowed? I don't see the purpose.Java Question - Using the bottom code, create another class named "DigitalBook" as a subclass of the given "Book" class. Then, Make sure that the "DigitalBook" class contains two constructors: (1) one is the default constructor that takes no parameter, and (2) the other is a parameterized constructor that take 6 parameters. Be sure to use the “super” keyword in the constructors of the "DigitalBook" class. In the “main()” method of the “EX12_1” class, create four instances: “b1”, “b2”, d1”, and “d2”. Let “b1” and “b2” be the instances of the “Book” class, and let the “d1” and “d2” be the instance of the “DigitalBook” class. Be sure to use the specified constructor (as shown in attached picture) to initialize these instances. The Final Output is shown in the attached pictures. Please make sure that no errors show up in the Java Compiler when testing the code. Thank you. Add the following code to the "class Book" code (Below the ___ line). public class EX12_1{public static void…
- Java Question - Using the bottom code, create another class named "DigitalBook" as a subclass of the given "Book" class. Then, Make sure that the "DigitalBook" class contains two constructors: (1) one is the default constructor that takes no parameter, and (2) the other is a parameterized constructor that take 6 parameters. Be sure to use the “super” keyword in the constructors of the "DigitalBook" class. In the “main()” method of the “EX12_1” class, create four instances: “b1”, “b2”, d1”, and “d2”. Let “b1” and “b2” be the instances of the “Book” class, and let the “d1” and “d2” be the instance of the “DigitalBook” class. Be sure to use the specified constructor (as shown in attached picture) to initialize these instances. The Final Output is shown in the attached pictures. Add the following code to the "class Book" code (Below the ___ line). public class EX12_1{public static void main(String[] args){/////add your code here}}…Indicate whether the statement is true or false. 13. The non-static methods of a class are called instance method. 14. A constructor has no type and is therefore a void method. 15. A class can have only two constructors. 16. In shallow copying, each reference variable refers to its own object. 21. The method finalize automatically executes when the class objects goes out of scope. 22. A mutator method of a class changes the values of data members of the class. 23. In java, the reference this is used to refer to only the methods, not the instance variables of a class. 24. Classes that are defined within other classes are called inside classes. 25. Modifiers are used to alter the behavior of the class 26. A constructor has the same name as the class. 27. Constructors are called like any other method. 28. You can perform some arithmetic operations on class objects.What key word is used to define a subclass from a super class? Write a Java statement that defines the subclass CSEFaculty class from the superclass CSEEmployee class (which is already defined)
