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- USE " Abstract Class " . MATCH OUTPUT AS IT IS WITH QUESTION OUTPUT ---------------------------- Write a C++ program to display the event details and hall details using abstraction. Strictly adhere to the Object-Oriented specifications given in the problem statement. All class names, member variable names, and function names should be the same as specified in the problem statement. Consider an abstract class Event with the following private member variables. Data type Variable string name string detail string type string organiser Include the pure virtual method for display() for the abstract class. Create default constructor and a parameterized constructor with arguments in order Event(String name, String detail, String type, String organiser). Include appropriate getters and setters. Create another class Exhibition with the following private member variables. Data type Variable int numberOfStalls Create default constructor and a parameterized…EXPLAIN THIS C++ PROGRAM STEP BY STEP WITH LOGIC #include<iostream>using namespace std;class Circle{private: //To Store center (x,y) and radius r double x,y,r; static int number_of_circles;public: //parameterized constructor Circle(double x1,double y1,double r1){ x=x1; y=y1; r=r1; update_number_of_circles(); } //Copy constructor Circle(Circle &c){ x=c.x; y=c.y; r=c.r; update_number_of_circles(); } //member function to display the values x,y,r void display(){ cout<<"Center : ("<<x<<" , "<<y<<") Radius : "<<r<<endl; } static void update_number_of_circles(){ number_of_circles++; } static int get_number_of_circles(){ return number_of_circles; } friend void updateCircle(double x,double y,double r,Circle &c){ c.x=x; c.y=y; c.r=r; }};int Circle::number_of_circles=0;int main(){…write a class implementation using C++ from the given class diagram TAKE NOTE OF THE FF SPECIFICATIONS: Using the constructor, create three objects from class Voters and store it in the stack memory. Two voters must have an active account and one voter has a deactivated account. Please note that the deactivated voter account must be still part of the “object”. Test all the functions by making calls. this should be the sample result
- OUTPUT MUST MATCH AS IT IS ---------------------------------- Write a C++ program using the operator overloading concept and display its results. Strictly adhere to the Object-Oriented specifications given in the problem statement. All class names, member variable names, and function names should be the same as specified in the problem statement. Consider a class named Complex with the private member variables. Datatype Variable int real int imaginary Include the private member variables and the constructor in the class Complex.Define the following public methods in the class Complex. Method Name Description Complex operator+(Complex a2) This function is used to perform the additional operation ofthe two complex numbers and returns the result. Complex operator-(Complex a2) This function is used to perform the subtraction operation ofthe two complex numbers and returns the result. complex operator*(complex a2) This function is used to perform the multiplication…Which of these two types of references to subprograms, variables, and objects in code is superior: fully qualified references or unqualified references? An explanation of the issues that arise with C's basic encapsulation and the influence that this has on C++.write a class implementation using C++ from the given class diagram TAKE NOTEOF THE FF SPECIFICATIONS: Using the constructor, create three objects from class Voters and store it in the stack memory. Two voters must have an active account and one voter has a deactivated account. Please note that the deactivated voter account must be still part of the “object”. Test all the functions by making calls. this should be the sample result. Please use simple codes only.
- Peter Sestof - Programming Language Concept Exercise 12.5 Improve the compilation of assignment expressions that are really just increment operations, such as thesei = i + 1a[i] = a[i] + 1It is easiest to recognize such cases in the abstract syntax, not by looking at the code continuation.In a paragraph, explain abstraction, encapsulation, information hiding, and formal interfaces. Describe how these concepts are used in C++ classes and objects. Access modifiers should be considered in your analysis.Write a program in c++: Consider that a system has two entities, Employee and Department. The employee has the following properties: employee name, number, SSN and salary. Similarly, the department has the following properties: department name, department number and a set of employees who are working on that department. Implement the above system taking into account the following requirements: In department, the number of employees that are working on this department is decided at the time when instantiating the department. Assume that emp1 and emp2 are two objects of type Employee, write a code that enables you to write: if (emp1.isequal (emp2)). Where emp1, emp2 are employee objects. The statement is true if the objects have the same salary. In department, make sure no two employees have the same employee number. In department, write a method to increase the salary of an employee by a specific value.it should validate that value.
- Write a program in c++: Consider that a system has two entities, Employee and Department. The employee has the following properties: employee name, number, SSN and salary. Similarly, the department has the following properties: department name, department number and a set of employees who are working on that department. Implement the above system taking into account the following requirements: In department, the number of employees that are working on this department is decided at the time when instantiating the department. Assume that emp1 and emp2 are two objects of type Employee, write a code that enables you to write: if (emp1.isequal (emp2)). Where emp1, emp2 are employee objects. The statement is true if the objects have the same salary. In department, make sure no two employees have the same employee number. In department, write a method to increase the salary of an employee by a specific value.it should validate that value. Write a getEmpByEno method in class department that…Take a real-world scenario and Implement it in C++ program. Your program should consist of the following: 1. Overloading =operator. 2. Copy constructor. Part B 1. The syntax for operator overloading is Return Type operator symbol (arguments)Explain the returntype and the type of arguments passed in the function 2. The syntax for copy constructor isClassName (const ClassName &old_obj);Explain the type of arguments passed in the functionTopic: Concepts of programming Language 4. a) Consider the following JavaScript program: var a, y, c;function sub1() {var b, z, c;function sub2() {var a, b, y;. . .}. . .}function sub3() {var a, x, w;. . .}List all the variables, along with the program units where they are declared,that are visible in the bodies of sub2 when the sequence of function call is:“sub1 calls sub3 and sub3 calls sub2”, assuming dynamic scoping is used.