What of the following is a purpose of Constructor? O Initialize the fields in the object O Determines the amount of space needed for an object and creates the object O Names the new object None of the answers
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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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- Create an application class named LetterDemo that instantiates objects of two classes named Letter and CertifiedLetter and that demonstrates all their methods. The classes are used by a company to keep track of letters they mail to clients. The Letter class includes auto-implemented properties for the name of the recipient and the date mailed. Also, include a ToString() method that overrides the Object classs ToString() method and returns a string that contains the name of the class (using CetType and the Letters data field values. Create a child class named CertifiedLetter that includes an auto-implemented property that holds a tracking number for the letter.Which of the following are NOT true for a constructor? Select one: a. It does not return anything b. Every class must include an explicitly written constructor c. Every field in the class is initialized in the constructor. d. It must have the same name as the classwhich of the following statements about classes and objects is false? 1. a class can contain objects as properties with it 2. a class can contain properties and methods 3. usually, only one object can be built for a given class 4. a class is like a blueprint or a type, and an object is something built according to the blueprint
- Which of the statements regarding the super keyword is incorrect? (not correct) You can use super to invoke a super class constructor. You can use super to invoke a super class method. You can use super to access a field in the super class if it is protected. You can use super to access a field in the super class if it is private.The project downloaded contains a package (folder) named Q3 within the src folder. The purpose of Question 3 is to examine your understanding of classes and inheritance. Inside Q3 is a completed Java class named Location. Location contains three fields: • locationName: name of location (String) • latitude: latitude of location (Double)• longitude: longitude of location (Double) Conceptually, the Location class represents a geographic location (e.g. a city). You do not need to modify the Location class. In this question you will complete an additional class named EuclideanRoute. The fields of the EuclideanRoute class consist of two Location objects named origin and destination. Therefore, a EuclideanRoute object represents the start/end points of a route a vehicle takes. The EuclideanRoute class is derived from the RouteInformation class and the routeDestination method calculates the distance from the origin to the destination using the formula for Euclidean distance. Finally, in the…(1) Create two files to submit: ItemToPurchase.java - Class definition Build the ItemToPurchase class with the following specifications: Private fields String itemName - Initialized in default constructor to "none" int itemPrice - Initialized in default constructor to 0 int itemQuantity - Initialized in default constructor to 0 Default constructor Public member methods (mutators & accessors) setName() & getName() \ setPrice() & getPrice() setQuantity() & getQuantity()
- Create a method named getCircleDiameter that takes a radius of double type as the parameter. The method should return the diameter of a circle. To compute the diameter of a circle, multiply the radius by 2.Create a struct named Product where its fields are code, description, and price. Create a class named Person with an instance variable named full_name. Declare one (1) constructor without a parameter and initialize the variable with a default value.Create a class named Account with an instance variable named account_number. Make this class a member of the Accounts namespace.Which of the following keywords mark the beginning of the class definition? Group of answer choices A:def B:return C:class D:All of the above Which of the following is required to create a new instance of the class? Group of answer choices A:A constructor B:A class C:A value-returning method D:A none methodCreate a class Car with parameters companyName, color, maxSpeed (Not more than 150) andcategory. Use appropriate data types and access specifiers. Use default constructor to create objectsof cars. (JAVA)
- Create an application via NetBeans with named Pizza that storesinformation about a single pizza. It should contain the following:• Private instance variables to store the size of the pizza (eithersmall, medium, or large), the number of cheese toppings, the number ofbeef toppings, and the number of chicken toppings.• Constructor(s) that set all of the instance variables.• Public methods to get and set the instance variables.• A public method named calcCost( ) that returns a double that is thecost of the pizza.Pizza cost is determined by: Small: OR10 + OR 2 per topping Medium: OR 12 + OR 2 per topping Large: OR 14 + OR 2 per topping• A public method named getDescription( ) that returns a Stringcontaining the pizza size, quantity of each topping, and the pizzacost as calculated by calcCost( ).Choose necessary patters, draw the UML and code just company class methods on paper. A car company makes a car produce application. There are diffrerent types of models that the company builds as sedan and sport. Each model has some shared and distinguishing features. The object creation process should conduct by a central class. The second central class should not be created in the application.Which of the below is a valid and correct constructor method for 'Movie' class? The attributes of the Movie objects are: name, director, year. The constructor will set all attributes. Lütfen birini seçin: a. def __init__(self, name, director, year): self.name = name self.director = director self.year = year b. def __init__(name, director, year): self.name = name self.director = director self.year = year c. None of the others d. def __init__(self, name, director, year): object.name = name object.director = director object.year = year e. def __init__(self, name, director, year, cast): object.name = name object.director = director object.year = year object.cast = cast
