nheritance describes "is a" relationship between a superclass and a subclass. W
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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:
//The language is java
Inheritance describes "is a" relationship between a superclass and a subclass. What is purpose using inheritance? Could any of two classes have "is a" relationship? Use of examples to explain why and why not.
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- Please answer this question: Multiple inheritance is considered when a subclass is extended from 2 or more subclasses, this concept however is not directly applicable in Java. Describe how one could go about doing that in Java.Hello. I am trying to answer a question for my Java programming class but I am having trouble answering. I would appreciate the help. Thanks. What is their to learn about Derived class? The derived class is said to inherit the properties of the base class, a concept called inheritance. What is their to learn about inheritance?What is the primary reason to use inheritance? when you want to include multiple classes in the same .java file when there is an "is-a" relationship when you want to avoid duplicating code when there is a "has-a" relationship
- Why would someone declare a class as abstract? How might Interfaces help you to achieve multiple inheritance?If a class is declared abstract, why would someone do that? How can interfaces assist you in achieving multiple ancestry via multiple inheritance?Write a Java operator/keyword, which can be used to check the validity of reference before attempting down-casting from superclass object to subclass reference. Given an example of it usage. (Write in maximum 5 lines) 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? (Write in maximum 5 lines)
- JAVA Please help asap, having trouble figuring this out and it is due tonight. Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not need to supply any comments other than your name). I. Write an abstract superclass encapsulating a Transaction: The Transaction super class has an instance variable representing the customers name, and 3 methods: an overloaded constructor, a toString() method that returns a message including the name of the customer, and an abstract method called calculateAmount()which will be implemented in your subclasses. II. Write a non-abstract subclass that inherits from the Transaction class encapsulating a Payment: The Payment class has instance variable representing the payment amount received and 3 methods. It has an overloaded constructor, a toString() method that returns a message including customers name, the name of the class Payment, and the payment amount, an non-abstract class…1 You have studied encapsulation and inheritance that are two important concepts of Object- Oriented Programmin and write a program of your own choice in it that can explain these concepts, and in the context of that program.And Also write the main method that can test the classes. write your answer below that will explain 1. How encapsulation and inheritance was achieved in this program? 2. What are the benefits you get after implementing encapsulation and inheritance in this program? 3. What are the disadvantages if you will not use encapsulation and inheritance in this program?Why is it necessary to devote more time and effort into Java programming (and object-oriented programming in general) to avoid having classes that are tied together when they do not need to be? Which three factors are more significant?
- java programming A is a parent class whereas B and C are subclasses of A. Now, B and Cshare some common attributes and some common methods, but there are somemethods in B and C that have very different implementations. Explain with reason whatA is going to be - a concrete class or an abstract class or an interface.what is the relationship between superclasses and subclasses in inheritance? Provide an example code segment in Java that illustrates inheritance and describe the superclass/subclass relationship.5) True or False A class can implement multiple interfaces. 6) What is the syntax for extending a class in Java? class Superclass extends Subclass class Subclass extends Superclass None class Subclass implements Superclass