Question

c++ please need help with this question

Consider a class Employee with data members: age(an integer), id (an integer) and salary (a float), and their corresponding member functions as follows:

class Employee

{

       private:

            int age;

            int id;

            float salary;

       public:

            Employee( ); // default constructor: age=0, id=0, and salary=0

            Employee(Employee &x);   // copy constructor

          Employee& operator = (Employee &x); // equal sign operator

            void setAge(int x);    // let age = x

            void setId(int x);       // let id = x

            void setSalary(float x);   // salary = x

int getAge( );        // return age

            int getId( );            // return id

            float getSalary( ); // return salary

            void print( );   // print out the values of attributes on computer screen

};

You need to provide the definition of the default constructor and the first three member functions (setAge, setId and setSalary) inside the scope defined by the brackets of class Employee and other three member functions (getAge, getId, and getSalary) outside the scope defined by the brackets of class Employee, as shown in the following skeleton:

class Employee

{

Employee( )

{ ..... }

void setAge(int x)

{ ......... }

void setId(int x)

{ ......... }

void setSalary(float x)

{ ......... }

};

int Employee::getAge( )

{

.....

}

int Employee::getId( )

{

....

}

float Employee::getSalary( )

{

......

}

Write a main routine in which you create 5 Employee objects: a, b, c, d, and e. Set the values of a, b and c as follows:

Objects	Age	Id	Salary
a	40	111	30000
b	41	112	31000
c	42	113	32000

The skeleton of the main( ) is as follows:

void main( )

{

            // create 4 Employee objects: a, b, c, d

           …..

            // set the values of a, b and c according to the above table

           ……

            // Use copy constructor to assign the content of object a to the content of object e

           ……

            // print out the contents of a and e to show they are the same

           ……

          // Use “=” operator to assign the content of object b to the content of object d

           ……

          // print out the contents of b and d to show they are the same

           ……

          // create an output file name: “output.txt”

……

// output the contents of d and e to the file, “output.txt”

           

}

You should open “output.txt” with a text editor and create a screenshot to show its contents.

Answer 1

If you have any doubts, please give me comment...

#include<iostream>

#include<fstream>

using namespace std;

class Employee

{

private:

int age;

int id;

float salary;

public:

Employee() // default constructor: age=0, id=0, and salary=0

{

age = 0;

id = 0;

salary = 0;

}

Employee(Employee &x) // copy constructor

{

age = x.getAge();

id = x.getId();

salary = x.getSalary();

}

Employee& operator=(Employee &x) // equal sign operator

{

age = x.getAge();

id = x.getId();

salary = x.getSalary();

return *this;

}

void setAge(int x) // let age = x

{

age = x;

}

void setId(int x) // let id = x

{

id = x;

}

void setSalary(float x) // salary = x

{

salary = x;

}

int getAge( ); // return age

int getId( ); // return id

float getSalary( ); // return salary

void print(); // print out the values of attributes on computer screen

};

int Employee::getAge( )

{

return age;

}

int Employee::getId( )

{

return id;

}

float Employee::getSalary( )

{

return salary;

}

void Employee::print(){

cout<<"Age: "<<age<<endl;

cout<<"Id: "<<id<<endl;

cout<<"Salary: "<<salary<<endl;

}

int main()

{

// create 4 Employee objects: a, b, c, d

Employee a, b, c, d;

// set the values of a, b and c according to the above table

a.setAge(40);

a.setId(111);

a.setSalary(30000);

b.setAge(41);

b.setId(112);

b.setSalary(31000);

c.setAge(41);

c.setId(113);

c.setSalary(32000);

// Use copy constructor to assign the content of object a to the content of object e

Employee e(a);

// print out the contents of a and e to show they are the same

cout<<"object a: "<<endl;

a.print();

cout<<endl;

cout<<"object e: "<<endl;

e.print();

cout<<endl;

// Use “=” operator to assign the content of object b to the content of object d

d = b;

// print out the contents of b and d to show they are the same

cout<<"object b: "<<endl;

b.print();

cout<<endl;

cout<<"object d: "<<endl;

d.print();

// create an output file name: “output.txt”

ofstream outFile;

outFile.open("output.txt");

// output the contents of d and e to the file, “output.txt”

outFile<<"object d: "<<endl;

outFile<<"Age: "<<d.getAge()<<endl;

outFile<<"Id: "<<d.getId()<<endl;

outFile<<"Salary: "<<d.getSalary()<<endl;

outFile<<endl<<"object 'e': "<<endl;

outFile<<"Age: "<<e.getAge()<<endl;

outFile<<"Id: "<<e.getId()<<endl;

outFile<<"Salary: "<<e.getSalary()<<endl;

outFile.close();

return 0;

}