A constructor O when overloaded, is selected by number, types and order of its parameters. can specify return types. cannot have the same name as the class. O cannot be overloaded.
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A: The member function with the same name as the class is given below.
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A: The answer is "False".
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A:
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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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- How many default constructors can a class have? a. A class cannot have a default constructor. b. only one c. as many as it needs d. one or more, but fewer than threeA(n) __________ is a method that appears in a base class but expects to be overridden in a derived class. a. abstract method b. virtual method c. concrete method d. base methodA constructor that takes a single parameter of a type different from the class type is a_________ constructor.
- The __________ declares that a derived class is allowed to override a method. a. void keyword b. protected keyword c. base keyword d. virtual keywordBuild a class Sale with private member variablesdouble itemCost; // Cost of the itemdouble taxRate; // Sales tax rateand functionality mentioned below:● Write a default constructor to set the member variable itemCost to 0 andtaxRate to 0. ● Write a parameterized constructor that accepts the parameter for eachmemberSale( double cost, double rate) c++True or False: In order to derive class A from class B, class A must contain a public member function that may be called by the rest of the class. (It is not a half-finished project.) A) This is correct. B) The answer is False.
- Create a base class with two methods. In the first method, call thesecond method. Inherit a class and override the second method.Create an object of the derived class, upcast it to the base type, andcall the first method. Explain what happens.I have multiple constructors defined in a class. Is it possible to call a constructor from another constructor’s body?Examine the following code and select the correct statements (choose all possibleoptions): class Bottle {Bottle() {}Bottle(WaterBottle w) {}}class WaterBottle extends Bottle {WaterBottle() { }WaterBottle(Bottle w) { } } a) The class Bottle defines two overloaded constructors.b) The class WaterBottle defines two overloaded constructors.c) The class compiles successfully—a base class can use reference variables of its derived class as method parameters.d) Bottle and WaterBottle cause syntax errors.e) The class compiles successfully - A derived class can use reference variables of its base class as method parameters.f) A base class can’t pass reference variables of its defined class, as method parameters in constructors.
- a) Write the declaration for class B. The members of the class should be as follows: m, an integer. This variable should not be accessible to code outside the class or to any class that extends class B. n, an integer. This variable should be accessible only to classes that extends class B or are in the same package as class B. setM, getM,setN, getN. These are the mutator aand accessor methods for the member variables m and n. These methods should be accessible to code outside the class. calc. This is a public abstract method. b) Write a declaration for class D, which extends class B. The members of the class are as follows: q, a double. This variable should not be accessible to code outside the class. r, a double. This variable should be accessible to any class that extends class D or is in the same package. setQ, getQ,setR, getR. These are the mutator aand accessor methods for the member variables q and r. These methods should be accessible to code outside the class. Calc, a…Create a class Car, which contains • Three data members i.e. carName (of string type), ignition (of bool type), and currentSpeed (of integer type)• A no-argument constructor to initialize all data members with default values• A parameterized constructor to initialize all data members with user-defined values• Three setter functions to set values for all data members individually• Three getter function to get value of all data members individually• A member function setSpeed( ) // takes integer argument for setting speedDerive a class named Convertible that contains• A data member top (of Boolean type)• A no-argument constructor to assign default value as “false” to top• A four argument constructor to assign values to all data-members i.e. carName, ignition,currentSpeed and top.• A setter to set the top data member up• A function named show() that displays all data member values of invoking objectWrite a main() function that instantiates objects of Convertible class and test the…Create a class Car, which contains • Three data members i.e. carName (of string type), ignition (of bool type), and currentSpeed (of integer type) • A no-argument constructor to initialize all data members with default values • A parameterized constructor to initialize all data members with user-defined values• Three setter functions to set values for all data members individually• Three getter function to get value of all data members individually• A member function setSpeed( ) // takes integer argument for setting speedDerive a class named Convertible that contains • A data member top (of Boolean type) • A no-argument constructor to assign default value as “false” to top• A four argument constructor to assign values to all data-members i.e. carName, ignition, currentSpeed and top.• A setter to set the top data member up • A function named show() that displays all data member values of invoking objectWrite a main() function that instantiates objects of Convertible class and test the…