In Java, a class can only inherit from one other ------- . A class can, however, extend many ----------.
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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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- In Java a class is allowed to inherit from as many superclasses as needed. True FalseThe mechanism of deriving a class from another derived class is known as A. Polymorphism B. Single Inheritance C. Multilevel Inheritance D. Message Passingoop using c++ please give me full naswer thanks Design a class named Person and its two subclasses named Student and Employee. Design two more classes; Faculty and Staff and inherit them from Employee. The detail of classes is as under: A person has a name, email address, phone number and address. A student has a status (String). An employee has an office, salary, and date hired A faculty member has office hours and rank A staff member has a title. Create display method in each class. Also create getter, setter and default constructor in above task.
- 1- Based on the UML shown below, Implement in Java the following inheritance hierarchy (the classes' description comes next): Disk - title: String - playTime: int // in minutes + Disk(title: String, playTime: int) + getTitle(): String + getPlay Time(): int + toString(): String Audio Video - artist: String - director: String · tracksList: java.util.ArrayList - description: String + Audio(artist: String, title: String, + Video(director: String, description: play Time: int) String, title: String, playTime: int) + getArtitst(): String + getDirector(): String + getTracksList() + getDescription(): String + addTrack(name: String): void + toString(): String + removeTrack(name: String): void + toString(): String A. Disk class is characterized by a String attributes title and an integer playTime. This class has: • A constructor that initializes all the attributes. • The getter and setter methods for the attributes. • A to String() method that returns each data field at a line in the form:…HAS-A relationship between the classes is shown through. A - Inheritance B - Container classes C - Polymorphism D - None of the above.What is the role of a normal constructor? in Java
- 1- Based on the UML shown below, Implement in Java the following inheritance hierarchy (the classes' description comes next): Disk title: String playTime: int // in minutes + Disk(title: String, playTime: int) + getTitle(): String + getPlayTime(): int + toString(): String Audio Video -artist: String director: String - tracksList: java.util.ArrayList - description: String + Video(director: String, description: + Audio(artist: String, title: String, playTime: int) String, title: String, playTime: int) + getArtitst(): String + getDirector(): String + getTracksList() + getDescription(): String + addTrack(name: String): void + toString(): String + removeTrack(name: String): void toString(): String C. Video class inherits the class Disk. It has as attributes two Strings director and description. This class has: A constructor that initializes all attributes. A toString() method that overrides the toString() method in the Disk class by adding the data fields of the Video class in the same…What is a Constructor, Constructor Overloading in Java and Copy-ConstructorMixed Fraction Arithmetic Java Project: Problem Description: Make a java program that facilitates addition, subtraction, multiplication, and division of mixed numbers (similar with the first activity) but this time all of the inputs /outputs may involve fractions, mixed fractions, or a combination. Points to consider: MixedFraction class must override the operations (add, subtract, multiplyBy, divideBy) inherited from Fraction class to have a different implementation if the MixedFraction object will have a Fraction object as parameter in performing the required operation, On top of that, the inherited operations must also be overloaded to allow a MixedFraction object to accept other parameters such as a whole number or another MixedFraction object. The toString method which is inherited must also be overridden by MixedFraction to have a more appropriate return value. Further formatting must also be considered such that if the result of the operation has a zero value for the whole…
- Implement the following hierarchy using C++ classes. 1. Shape: This should be an interface class that supports area() and display() functions. 2. Circle and Rectangle: Implement the area and display functions of Shape. 3. Quadrilateral: This class should be an abstract class. It may contain member variables for length and height. 4. Trapezoid: Should inherit length, height from Quadrilateral, and add 'side', represents the side parallel to 'length'. 5. Create appropriate .h/.cpp files with constructors and destructors (wherever needed). which 6-JAVA assignment: Exercise 1: Implement the class Student as presented by the following UML diagram: Exercise 2: write a driver class to test the student class as follow:Polymorphism allows the addition of classes