3.14 C++ Exercises and Solutions C ++ H ow to Prog ram ( 8th Ed ition ) By Paul Deitel,

(Employee Class) Create a class called Employee that includes three pieces of information as data members—a first name (type string), a last name (type string) and a monthly salary (type int). [Note: In subsequent chapters, we’ll use numbers that contain decimal points (e.g., 2.75)— called floating­point values—to represent dollar amounts.]

Your class should have a constructor that initializes the three data members. Provide a set and a get function for each data member.

If the monthly salary is not positive, set it to 0. Write a test program that demonstrates class Employee’s capabilities. Create two Employee objects and display each object’s yearly salary. Then give each Employee a 1 0 percent raise and display each Employee’s yearly salary again.

Solution:

#include <cstdio>
#include <cstdlib>
#include <iostream>
using namespace std;
#include "Employee. h"
int main()
{
Employee employee1 ( "Jack" , "Miller", 1000) ;
Employee employee2 ( "Bill" , "Clinton", 2000) ;
cout << "The new employees: \n" << employee1. getFirstName() << " "
<< employee1. getLastName() << " " << employee1. getSalary() << endl;
cout << employee2. getFirstName() << " " << employee2. getLastName()
<< " " << employee2. getSalary() << endl << endl;
cout << "Yearly salary of employees: \n"
<< employee1. getFirstName() << " " << employee1. getLastName() << " " << (employee1. getSalary() ) *12 << endl;
cout << employee2. getFirstName() << " " << employee2. getLastName() << " " << (employee2. getSalary() ) *12 << endl;
cout << "Increased yearly salary of employees: \n"
<< employee1. getFirstName() << " " << employee1. getLastName() << " " << (employee1. getSalary() ) *12*1. 1 << endl;
cout << employee2. getFirstName() << " " << employee2. getLastName() << " " << (employee2. getSalary() ) *12*1. 1 << endl;
system("PAUSE") ;
return 0;
}

// Employee. h file

#include <cstdio>
#include <cstdlib>
#include <iostream>
using namespace std;
class Employee
{p
ublic:
Employee(string initFirstName, string initLastName, int initSalary) ;
void setFirstName( string ) ;
string getFirstName() ;
void setLastName( string ) ;
string getLastName() ;
void setSalary( int ) ;
int getSalary() ;
private:
string firstName;
string lastName;
int salary;
};

// Employee. cpp file

#include <cstdio>
#include <cstdlib>
#include <iostream>
using namespace std;
#include "Employee. h"
//initialization with constructor
Employee: : Employee(string initFirstName, string initLastName, int initSalary)
{
setFirstName( initFirstName) ;
setLastName( initLastName) ;
setSalary( initSalary) ;
}
//function for set first name
void Employee: : setFirstName( string initFirstName)
{
firstName = initFirstName;
}

//function for get first name
string Employee: : getFirstName()
{
return firstName;
}

//function for set last name
void Employee: : setLastName( string initLastName)
{
lastName = initLastName;
}
string Employee: : getLastName()
{
return lastName;
}

//function for set salary
void Employee: : setSalary( int initSalary)
{
if (initSalary < 0)
{
cout << "The salary amount can' t be negative. Salary set as 0" << endl;
salary = 0;
}
else
{
salary = initSalary;
}
}

//function for get salary
int Employee: : getSalary()
{
return salary;
}