Create an interface OnlineQuiz with the following details: Member variables: 1. maxMarks-10 Member Methods: totalMarks(0: An abstract method that calculates and return total marks. Defined in subclass. display): An abstract method that displays all details. Defined in a subclass. 2. Create a class Student that inherits OnlineQuiz with the following details: Member variables: studentID // id of the student string type studentName // Name of the student string type marksMCQ marksTF marksMatch Member Methods: Define the parameterized constructor to set the member variables. Define the method totalMarks) which calculate and return the total marks. Total marks= marksMCQ + marksTF+ marksMatch Define the method grade) which calculate and returns the grade of the student as given below: Total marks >8 and <=10 // Marks of MCQ type questions double type // Marks of true/false type questions double type //Marks of match type questions double type Grade >6 and <=8

Create an interface OnlineQuiz with the following details: Member variables: 1. maxMarks-10 Member Methods: totalMarks(0: An abstract method that calculates and return total marks. Defined in subclass. display): An abstract method that displays all details. Defined in a subclass. 2. Create a class Student that inherits OnlineQuiz with the following details: Member variables: studentID // id of the student string type studentName // Name of the student string type marksMCQ marksTF marksMatch Member Methods: Define the parameterized constructor to set the member variables. Define the method totalMarks) which calculate and return the total marks. Total marks= marksMCQ + marksTF+ marksMatch Define the method grade) which calculate and returns the grade of the student as given below: Total marks >8 and <=10 // Marks of MCQ type questions double type // Marks of true/false type questions double type //Marks of match type questions double type Grade >6 and <=8

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Describe how you can use an interface as an alternative to a class to specify the type for a parameter.
In java language on netbeans design a console application that will print the game sales for a particular game in 2021. Use an abstract class named Games that contains variables to store the game name, game genre and the total sales. Create a constructor that accepts the game name, game genre and the total game sales as parameters. In this class also create get methods for the variables. The Games class must implement an iGames interface that contains the following: public interface iGames { public void printSales(); public String getGame(); public String getGameGenre(); public int getGameSales(); } Create a subclass called Game Sales that extends the Games class. The Games Sales class must contain a constructor to accept the game name, game genre and total game sales as parameters. Then, write code for the Print Sales method, which prints the game sales report for 2021. Finally, write a Use Games class to instantiate the Games Sales class.
An enumeration can contain public constant variables O True O False An interface can extend as many interfaces as the programmer wants O True O False An abstract class must contain at least 1 abstract method O True False
Create an Employee Class with the ff: attributes: = String name = double salary = String birthday = __init__(self, name, salary, birthday) = String getDetails() -- returns a String value that represents all the information of the Employee object Create a Manager class that inherits Employee, a Manager will also have the ff: = String department = __init__(self, name, salary, birthday, department) = String getDetails() -- returns a String value that represents all the information of the Manager object Create a Director class that inherits Manager, a Director will also have the ff: = double carAllowance = __init__(self, name, salary, birthday, department, carAllowance) = def playGolf() -- will print a string value '{name of director} plays golf' = String getDetails() -- returns a String value that represents all the information of the Director object Create 2 objects of each class and call their respective getDetails() method. Do not write WET codes, be sure there's no…
A cash processing company has a class called Account used to process transactions: Method/Constructor Description public Account (Client c) public boolean process (Transaction t) constaucts an account using client information processes the next transaction, returning true if transaction was approved, false otherwise Account objects interact with Transaction objects, which have many methods including: Method/Constructor Description returns the value of this transaction in pennies (could be negative, positive or zero) public int value() The company wishes to create a slight modification to the Account class that filters out zero-valued transactions. Design a new class called FilteredAccount whose instances can be used in place of an Account object but which include the extra behavior of not processing transactions with a value of 0. More specifically, the new class should indicate that a zero-valued transaction was approved but shouldn't call the process method in the Account class to…
Page < 32 of 41 You can override a private method defined in a subclass. (True/False)? ZOOM +
Car Class Project The car classwill havethe following attributes: •year: an integer that holds the car's model year •model: a string that holds the make of the car •make: a string that holds the model of the car •speed: an integer that holds the car's current speed Your class should contain thefollowing: A docstring that briefly describes the class and lists the attributes. The docstring will serve as the documentation for your class. •A constructor (__init__ method) that takes the car's year model and make as optional arguments. The constructor will set the value of the speed attribute to 0.•An __str__ method that returns the car's year model and makein a string. •To test your class, create acar object and use the print function to verify that the constructor and __str__ methodsare working correctly. •An accessor method which returns the value stored in the speed instance variable. Call this method getSpeed(). •A modifier method called accelerate() which adds 5 to the speed variable…
True or False ___(1) An abstract class can have fields. ___(2) You can create an object from an abstract class _ _(3) An abstract class can have both abstract methods and methods that have method body
In Python, #Create a basket class, which has a class/static attribute pricelist (string/float dictionary - you can hardcode this) #The constructor should set the name to the name passed as a parameter and initialise the contents (empty) #You should provide an addItem method taking product,quantity which adds this to the contents #and a getQuantity method taking a product, which returns the relevant quantity
1. Create 2 interfaces: BankInterface and PetInterface. BankInterface contains only 1 abstract method: accountType() which does not return anything and takes 1 String argument: accType. PetInterface contains only 1 abstract method: petType() which does not return anything and takes 1 String argument petType. 2. Create an abstract class named Student. This class contains 2 instance variables, 1 constructor, and 2 abstract methods. a. Instance variables: stId and stName (Use must use appropriate data type.) b. A 2-argument constructor that will be called from its subclass (the concrete class) to load 2 instance variables of this level during the creation of an object in its subclass. c. 2 abstract methods: getStId and getStName.. Each of these methods, when sub classed into concrete ones, should return the respective values of the instance variables stId and stName. d. At this level you should do something to get the object state at this level. 3. Create a concrete class named…
class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };
1. Create 2 interfaces: BankInterface and PetInterface. BankInterface contains only 1 abstract method: accountType() which does not return anything and takes 1 String argument: accType. PetInterface contains only 1 abstract method: petType() which does not return anything and takes 1 String argument petType. 2. Create an abstract class named Student. This class contains 2 instance variables, 1 constructor, and 2 abstract methods. a. Instance variables: stId and stName (Use must use appropriate data type.) b. A 2-argument constructor that will be called from its subclass (the concrete class) to load 2 instance variables of this level during the creation of an object in its subclass. c. 2 abstract methods: getStId and getStName.. Each of these methods, when sub classed into concrete ones, should return the respective values of the instance variables stId and stName. d. At this level you should do something to get the object state at this level. 3. Create a concrete class named…