Inheritance is an OOP concept such that a class can be defined in different ways, such as either being typecasted to itself (as a subclass) or any of its superclasses. True False
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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:
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- Any class that does not explicitly specify its superclass through an extends declaration implicitly extends the predefined class.Object-Oriented Programming Create a Java program that has the following: Inheritance - Create a superclass and one or more subclasses that inherit properties and methods from the superclass. Polymorphism - Show polymorphism by using method overriding and method overloading. Provide an example of runtime polymorphism by creating objects of the subclasses and calling overridden methods. Encapsulation - Demonstrate the concept of encapsulation by applying access modifiers (private, protected, public) appropriately in your program. Abstraction - Utilize abstract classes and methods in your program to illustrate abstraction. Show examples of the following words: super, this, static, final (NO USE OF AI)language: Java Class Inheritance with an abstract class Define a class Employee with the following fields: _name, _empId, _department, _position (_title), _yearlySalary, _fullTime (a boolean: true/false) , _month , _year (time of hire) Add constructor and properties Define an abstract method GetBiMonthlySalary() (if the employee is paid twice a month) Define an abstract method GetVacationTime() that returns the number of vacation time this employee would have based on time of hire Override the ToString() method to return a string that contains the information pertaining to an employee such as name, empId, department, and where full time or not. Define a class HourlyEmployee that inherits from Employee. This class should have 2 fields of its own: _hours (hours worked in half a month) and _wage (hourly wage) Provide necessary constructor, properties and methods Override the ToString() to also return the additional fields Gets 3 days of vacation after first year if the…
- Declaring a class virtual transforms it into an abstract class. T/FO In inheritance means the ability to reuse data values of one object by objects of .another classPolymorphism : Write a driver program that uses a AECar reference variable to point to three different types of classes, showing that inheritance is one mechanism for using polymorphism.
- 75. The fact that the same operation may apply to two or more classes is called what? a. Inheritance b. Polymorphism c. Encapsulation d. Multiple classificationThe ability to create classes that share the attributes and methods of existing classes but with more specific features is known as : Abstraction Polymorphism Typecasting InheritanceС++ Multiple inheritance is When a class is derived from another class When a class is derived from other two derived classes When a class is derived from two or more classes When a class is derived from exactly one class
- True or False:Unlike other members of a superclass, constructors of a superclass are not inherited by its subclasses. This means that you must define a constructor for a class or use the default constructor added by the compiler.In Java a class is allowed to inherit from as many superclasses as needed. True FalseThe module view of inheritance refers to: Dynamic binding Every operation applicable to the instances of a superclass is also applicable to the instances of its subclasses. A subclass describes an extension of the parent module O A subclass describes a subtype of the parent type Which statement about encapsulation is incorrect. Encapsulation provides a way to cope with change Encapsulation conceptualizes a problem at a higher level of abstraction Encapsulation facilitates software maintenance O Encapsulation conceptualizes a problem at a lower level with specific data structures O O