e (.h file) of a class Counter containing: A data member counter of type int. A data member named counterID of type int. A static int data member named nCounters. A constructor that takes an int argument. A function called increment that accepts no
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In C++
Write the header file (.h file) of a class Counter containing:
- A data member counter of type int.
- A data member named counterID of type int.
- A static int data member named nCounters.
- A constructor that takes an int argument.
- A function called increment that accepts no parameters and returns no value.
- A function called decrement that accepts no parameters and returns no value.
- A function called getValue that accepts no parameters and returns an int.
- A function named getCounterID that accepts no parameters and returns an int.
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- Write a program in C++ that reads a list of enrollments from a file and prints a class roster for the teacher. The program would use files, functions, and classes.Here's what the output should look like: $ ./enroll.out Welcome to the Roster Generator Program!!! Please enter the name of your names file: bob.dat I'm sorry, I could not open 'bob.dat'. Please enter another name: csc442 File 'csc442' opened successfully! Name | Major | Phone # | Town ----------------+--------------------+---------------+------------------- Jason James | Computer Science | 555/555-1122 | Westfalia, HI 665 Faruk Ahmed | Medeaval French Po | 332-4546 | Slimsville, PQ 22 Sean Ramirez | Underwater Basket | 1-444/411-441 | Fritter, HO 44331 Happy Gilmore | Yellow Tail Migrat | | Simonton, SZ 1124 Total Enrollment: 4 Thank you for using the RGP!! Endeavor to have a gyroscopic day! $Write a C++ program to create a new date by the user. The user will type in month, day, and year with a function called readDate( ) with appropriate parameters. Define a class called Date, with month, day, and year as private members with integer values, and a public member function, setDate( ), which will set the input dates, and showDate( ) to display the input date as an output for the class.Write a java program that contains variables to hold employee data like; employeeCode, employeeName and date Of Joining. Write a function that assigns the user defined values to these variables. Write another function that asks the user to enter current date and then checks if the employee tenure is more than three years or not. Call the functions in main. Now write a runner class that declares two employee objects and check their tenure periods.
- In this task, we’re going to be simulating an email message. ●Create a class definition for an Email.The initialiser takes in two arguments and stores them as instance-level variables:○from_address - the sender’s email address.○subject_line - the subject of the email.○email_contents-the content of the email.●In addition,the initialiser will create two more instance-level variables with defaultvalues:○has_been_read - initialised to False.○is_spam - initialised to False.●Create a function in this class called mark_as_read which should change has_been_read to true.●Create a function in this class called mark_as_spam which should change is_spam to true.●Create another class called "Inbox" to store all emails (note that you can have a list of objects). The initaliser doesn’t take any arguments, and only initialises an empty list. This list is where all of your Email objects will be stored.●Within the Inbox class, create the following methods:○add_email (self, from_address, subject_line,…Write an OOP program in C++, which contains three, classes i.e. Parent Class, Child1 Class & Child2 Class. Parent Class inherited within Child1 Class & Child2 Class. Parent Class has one member function that is Public: void Show( );. Child1 & Child2 Class will follow the signature of the Parent Class member function; each class will have different function definitions. And during running time a message will be displayed that which class object you want to create to call their member function as shown in the output below. For Example: if enter 1 then it will call parent class function If enter 2 then it will call child1 class function If enter 3 then it will call child2 class function. Hint: Solve this Program using Run Time Polymorphism.In C++ Write the implementation (.cpp file) of the Counter class of the previous exercise.The full specification of the class is: A data member counter of type int. An data member named counterID of type int. A static int data member named nCounters which is initialized to 0. A constructor that takes an int argument and assigns its value to counter. It also adds one to the static variable nCounters and assigns the (new) value of nCounters to counterID. A function called increment that accepts no parameters and returns no value. increment adds one to the instance variable counter. A function called decrement that accepts no parameters and returns no value. decrement subtracts one from the counter. A function called getValue that accepts no parameters and returns an int. It returns the value of the instance variable counter. A function named getCounterID that accepts no parameters and returns an int. getCounterID returns the value of the data member counterID.
- Previous Exercise to help with answering the question which is below | Write the header file (.h file) of a class Counter containing: A data member counter of type int. A data member named counterID of type int. A static int data member named nCounters. A constructor that takes an int argument. A function called increment that accepts no parameters and returns no value. A function called decrement that accepts no parameters and returns no value. A function called getValue that accepts no parameters and returns an int. A function named getCounterID that accepts no parameters and returns an int. #include<iostream>using namespace std; class Counter{private:int counter;int counterID;static int nCounters;public:Counter(int c);void increment();void decrement();int getValue();int getCounterID();}; ----------------------------------------------------------------------- ANSWER THIS QUESTION!In C++ Write the implementation (.cpp file) of the Counter class of the previous exercise.The…Put the client program in a separate file from the class, and divide the class into specification file (fraction.h) and implementation file (fraction.cpp), so your code will be in 3 separate files. Fraction.h #include <iostream>using namespace std; int gcd(int a, int b) { if (a == 0) return b; if (b == 0) return a; if (a == b) return a; if (a > b) return gcd(a - b, b); return gcd(a, b - a);} class Fraction {private: // numerator and denominator int n, d; public: // simplifies the fraction void simplify() { int g = gcd(n, d); n /= g; d /= g; } // default constructor Fraction() { n = 0, d = 1; } // parameterised constructor Fraction(int a, int b) { n = a, d = b; simplify(); } // prints the fration as n/d void print() const { cout << n << "/" << d; } // multiplies 2 fractions and returns it Fraction multipliedBy(Fraction f) const { f.simplify(); Fraction r; r.n = n * f.n; r.d = d * f.d; r.simplify(); return r; } // divides two fraction and…In this task, we’re going to be simulating an email message. Some of the logic hasbeen filled out for you in the email.py file.● Open the file called email.py.● Create a class definition for an Email which has four variables:has_been_read, email_contents, is_spam and from_address.● The constructor should initialise the sender’s email address.● The constructor should also initialise has_been_read and is_spam to false.● Create a function in this class called mark_as_read which should changehas_been_read to true.● Create a function in this class called mark_as_spam which should changeis_spam to true.● Create a list called inbox to store all emails (note that you can have a list ofobjects).● Then create the following methods:○ add_email - which takes in the contents and email address from thereceived email to make a new Email object.○ get_count - returns the number of messages in the store.○ get_email - returns the contents of an email in the list. For this, allowthe user to input an index…
- Write a C++ program to check for the not-eligible donor by throwing a custom exception.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. The class Donor has the following protected variables. Data Type Variable string name int age int weight string bloodGroup In the Donor class, define the following function. Method Description bool validateDonor(Donor donor) This method validates donor eligibility. Validate the donor details with the following conditions. 1.Age must be greater than 30 then the donor is eligible. 2.If the age is less than 30 then throw an exception and check the weight should be greater than 44 kg in catch block, If the weight is also less than 44 then the donor is not eligible and rethrow the exception to the main method. If the weight is greater than 44 then the donor is eligible. In the…Write a program in C++, that creates a class Rock with a default constructor, a copy-constructor, an assignment operator, and a destructor, all of which announce to cout that they’ve been called. In main( ), create a vector<Rock> (that is, hold Rock objects by value) and add some Rocks. Run the program and explain the output you get. Note whether the destructors are called for the Rock objects in the vector. Now repeat the exercise with a vector<Rock*>. Is it possible to create a vector<Rock&>?IN C++, Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables - a part number (type String), a part description (type String), a quantity of the item being purchased (type int) and a price per item (double). Your class should have a constructor that initializes the four instance variables. Provide a set and a get method for each instance variable. In addition, provide a method named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to0. Write a test app named InvoiceTest that demonstrates class Invoice's capabilities.