Q1: Fill in the blanks with suitable words: 1- A is the blueprint from which individual objects are created. 2- The capability of a class to derive properties and characteristics from another class is called 3- is an OOP technique that provides a single interface to multiple entities of diverse types. 4- A is automatically called whenever a new object of this class is created 5- Inheritance is a type of inheritance where a derived class is created from another derived class. 6- A function, is a function which is not a member of the class but still can access all the member of the class.
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- What are the similarities between structs and classes? (Select all that apply) - Private data members cannot be accessed outside of the class or struct -A default constructor will always be provided in both structs and classes to allow objects to be constructed -In both cases, objects are instances containing values -Operator == can be used to compare either struct or class variables of the same type -Operator = can assign variables of the same type by copying the values on the right to the object on the left -Variables of type struct or class that are declared in a function can be a return value for the function.Model a room class, whose member data is three integers length, width and height. The classcontains two constructors to initialize the room class objects, first is no argumentconstructor, while the second in three arguments constructor. Class also contains threemember functions i.e., getdatat) to get the data from user and store in the memory of callingobject and showdata) to show the room data of calling object, int volume(int I, int w, int h)function should receive the length, width and height values from the objects one by one andreturn the volumes of the three objects respectively.Write a main program to declare the three object rl, 12, and 13 of room class. Two objectwill store the values through three argument constructor and third object will get the datafrom user by calling getdata function. Then all three objects should call the volumefunctions to calculate their volumes and store them in three variables of type integer. Finallythe system compare the three volumes values…Question 30 Which of the following description is TRUE? Inheritance allows us to define a class based on another class. Child classes receive all the features from the parent class but can NOT have their own additional features. Abstraction means that a method in a parent class can have a number of different implementations in child classes. An interface is a completely abstract class, which contains abstract properties, methods, and variables. The private access modifier makes members accessible only from within the class and hides them from the outside.
- 1- Create a class SchoolKid that is the base class for children ar aschool . It should have attributes of the child’s name and age ,the name of the child’s teacher ,and the greeting. It should haveappropriate accessor and mutator methods for each of the attributes. Derive a class ExaggeratingKid from schoolkid , as described above . The new class should override the accessor method for the age , reporting the actual plus 2. It also should override the accessor for the greeting ,returning the child’s greeting concatenated with the words “I am the best”.73. An abstract class is which of the following? a. A class that has direct instances, but whose descendants may have direct instances. b. A class that has no direct instances, but whose descendants may have direct instances. c. A class that has direct instances, but whose descendants may not have direct instances. d. A class that has no direct instances, but whose descendants may not have direct instanceswrite a phyton code: 1- define a class CommissionEmployee that:a. has a firstName, lastName, socialSecurityNumber, grossSales and commissionRateinstance variablesb. does initialize its properties to the values given at the time of instantiation withdefault valuesc. does provide a string representation when we call print on it2- define a class BaseCommissionEmployee, that is a CommissionEmployee anda. has a " baseSalary " property that tells us the base salary per weekb. does initialize its properties, inherited from CommissionEmployee class and definedin BaseCommissionEmployee, to the values given at the time of instantiation.c. has a method earnings that calculates and returns commission employee's pay(baseSalary + ( commissionRate * grossSales ))d. does provide a string representation when we call print on it3- define a class CommissionTester thata. has a method "main" to test the CommissionEmployee and BaseCommissionEmployeeclassesb. the main method must instantiate the class into…
- Question 15 A class can inherit from just one base class, but it can implement multiple interfaces True FalseFill in the blanks: ________ is a technique for identifying which information should be hidden. _________ allows related classes to be organized in a hierarchical manner _____ enables code behave differently at different times during execution. _______ provides a kind of "multiple inheritance" which is not supported in Java. a. Container b. Abstraction c. Inheritance d. Object e. Interfaces f. Polymorphism- Simple factory is not considered a design pattern because it does not decouple the client from concrete classes Select one: True False 2- structural patterns provide guidance on the way in which classes interact to distribute responsibility Select one: True False 3- The Simple factory is used when you want to limit the instantiation of classes to one implementation Select one: True False 4- When a class A is composing a reference to another class B, then we say that class A has-a class B relationship Select one: True False
- Consider a base class Employee which contain basic information of an employee such as:Name(string)Address(string)Id(int)Gender(string)Now create two constructors A default constructor to initialize the data member with default values, A four-argument constructor to initialize data field with user-define values ( must use this key word). Getter and setter function to set and get values of data fields.Derives two classes to show Hierarchical inheritance.A department class which extends the base class employee also have some its own information such as:Department Name(string)Department Id(int).Now create two constructors a default constructor to initialize the data member with default values, a parameterized constructor to initialize data field with user-define values. Appropriate getter and setter function to set and get values of data fields. A display method to show all the records of employee along with department information.Create another child class Loan which extends the base…Programming problem: Currency Simulator A. Create an abstract base class called Currency with two integer attributes, both of which are non-public (Python programmers - it is understood that there is nothing private in Python but try to not access the attributes directly from outside the classes). The int attributes will represent whole part (or currency note value) and fractional part (or currency coin value) such that 100 fractional parts equals 1 whole part. B. Create two derived classes - Dollar and Pound - with one additional non-public string attribute which will contain the name of the currency (Dollar or Pound) respectively. DO NOT add this attribute to the base Currency class. C. In your base Currency class, add public methods for the following, where appropriate (C++ students are allowed to use friend methods as long as a corresponding class method is defined as well): Default Construction (i.e. no parameters passed). Construction based on one single input of type double -…Consider a base class Employeewhich contain basic information of an employee such as: Name(string) Address(string) Id(int) Gender(string) Now create two constructors A default constructor to initialize the data member with default values, A four-argument constructor to initialize data field with user-define values ( must use this key word). Getter and setter function to set and get values of data fields. Derives two classes to show Hierarchical inheritance. A departmentclass which extends the base class employee also have some its own information such as: Department Name(string) Department Id(int). Now create two constructors a default constructor to initialize the data member with default values, a parameterized constructorto initialize data field with user-define values. Appropriate getter and setter function to set and get values of data fields. A display method to show all the records of employee along with department information. Create another child class Loanwhich extends the…