C plus plus program that display an employees name by entering an id?

Answer 1

Ideally you'd want to use a DBMS to store and retrieve the employee data, but we'll keep it simple and use some static data instead.

#include

#include

#include

#include

struct employee

{

std::string m_name;

unsigned m_id;

employee(std::string name, unsigned id): m_name(name), m_id(id) {}

};

std::vector employees;

void load_data ()

{

employees.push_back (employee ("Alan", 1));

employees.push_back (employee ("Brian", 2));

employees.push_back (employee ("Charles", 3));

employees.push_back (employee ("David", 4));

employees.push_back (employee ("Eric", 5));

}

unsigned input_id (std::string prompt)

{

unsigned id = 0;

while (1)

{

std::cout<

std::string input="";

getline (std::cin, input);

std::stringstream ss (input);

if (ss>>id)

break;

std::cout<<"Invalid input.\n";

}

return (id);

}

employee* locate (unsigned id)

{

for (unsigned i=0; i

{

if (employees[i].m_id == id)

return (&employees[i]);

}

return (NULL);

}

int main()

{

load_data ();

unsigned id=0;

do

{

if( id=input_id("Enter an employee ID (0 to exit)"))

{

if (employee* emp = locate( id ))

std::cout<m_name<<'\n'<

else

std::cout<<"There is no employee with that ID.\n"<

}

} while( id );

std::cout<

}

Example output

Enter an employee ID (0 to exit): 6

There is no employee with that ID.

Enter an employee ID (0 to exit): 5

Eric

Enter an employee ID (0 to exit): 2

Brian

Enter an employee ID (0 to exit): 0