On Oct 23, 3:34 pm, "Jim Langston" <tazmas...@rocketmail.com> wrote:
> "cantide5ga" <forte....@gmail.com> wrote in message
>
> news: ups.com...
>
>
>
> >I am a student beginning C++ (also new to Newsgroups as well) and am
> > having a hell of a time understanding everything. My experience in OO
> > and UML from a prior class provide an understanding of what C++ COULD
> > do, but I can't seem to get past the coding aspect.
>
> > The program below is one of my assignments that is the beginning of an
> > Employee DB. It does what is asked, but not how it was asked:
>
> > //
> > ************************************************** ************************************************** ******************************
> > #include <iostream>
> > using std::cout;
> > using std::cin;
> > using std::endl;
>
> > #include <string>
> > using std::string;
> > using std::getline;
>
> > class EmployeeData
> > {
> > public:
> > const static int number = 100;
>
> > void getEmployee()
> > {
> > getStaffNumber();
>
> > for (int n = 1; n <= staffNumber; n++)
> > {
> > cout << "Input data for EMPLOYEE #" << n << endl;
>
> > arrayData = n;
>
> > getStaffName();
> > getStaffTitle();
> > getStaffWage();
> > getStaffHours();
>
> > cin.ignore( 1, '\n' );
> > }
> > }
>
> > void putEmployee()
> > {
> > for (int n = 1; n <= staffNumber; n++)
> > {
> > cout << "Data for EMPLOYEE #" << n << endl;
>
> > if (staffWage[n] > 20)
> > staffName[n] = staffName[n] + "*";
>
> > if (staffWage[n] * staffHours[n] > 800)
> > staffName[n] = staffName[n] + "*";
>
> > cout << "\nNAME\t: " << staffName[n];
> > cout << "\nTITLE\t: " << staffTitle[n];
> > cout << "\nPAY\t: $" << staffWage[n] * staffHours[n];
> > }
> > }
>
> > private:
> > string staffName[number];
> > string staffTitle[number];
> > double staffWage[number];
> > double staffHours[number];
> > int arrayData;
> > int staffNumber;
>
> > int getStaffNumber()
> > {
> > int number;
>
> > cout << "Please enter number of employees (max. 100): ";
> > cin >> number;
>
> > staffNumber = number;
>
> > cin.ignore( 1, '\n' );
>
> > return staffNumber;
> > }
>
> > string getStaffName()
> > {
> > string name;
>
> > cout << "Employee NAME\t: ";
> > getline(cin, name);
>
> > staffName[arrayData] = name;
>
> > return staffName[arrayData];
> > }
>
> > string getStaffTitle()
> > {
> > string title;
>
> > cout << "Employee TITLE\t: ";
> > getline(cin, title);
>
> > staffTitle[arrayData] = title;
>
> > return staffTitle[arrayData];
> > }
>
> > double getStaffWage()
> > {
> > double wage;
>
> > cout << "Employee WAGE\t: ";
> > cin >> wage;
>
> > staffWage[arrayData] = wage;
>
> > return staffWage[arrayData];
> > }
>
> > double getStaffHours()
> > {
> > double hours;
>
> > cout << "Employee HOURS\t: ";
> > cin >> hours;
>
> > staffHours[arrayData] = hours;
>
> > return staffHours[arrayData];
> > }
> > };
>
> > int main()
> > {
> > EmployeeData id0;
>
> > id0.getEmployee();
> > id0.putEmployee();
>
> > return 0;
> > }
> > //
> > ************************************************** ************************************************** ******************************
>
> > I *think* I should be able to somehow invoke a constructor to create
> > an object for each employee (with relative name, title, wage, and
> > hours data) but I can't wrap my head around the concept. The main
> > obstacle here is having a unique object name created for each
> > employee. After melting my brain for hours, I decided to just go with
> > my default idea and have one object containing a user defined amount
> > of arrays.
>
> > According to the assignment:
> > -Create and use a GetEmployee function that returns an employee
> > object. This function will prompt the user to enter data, store that
> > data in an object, and return the object to the calling function.
> > -Create and use a function that displays a list of employees and their
> > pay. This function will take an array of employee object as an
> > argument.
>
> > It sounds to me like I do indeed need to have an object for each
> > employee, because the display function will take it as an argument!
> > Oh man... any advice would be appreciated.
>
> Since this is homework, I'll not give you complete code, but you have shown
> a tremendous amount of effort, so I'll pretty much show you how to do it.
> Untested code: Note that mainline is just showing a rudimentary way of
> input, etc... you should use proper error checking, etc...
>
> class EmployeeData
> {
> public:
> EmployeeData( const std::string& Name, const std::string& Title ):
> Name_( Name ), Title_( Title ) {}
> std::string Name() { return Name_; }
> std::string Title() { return Title_; }
> private:
> std::string Name_;
> std::string Title_;
>
> };
>
> int main()
> {
> std::vector<EmplyeeData> Data;
>
> std::string Name;
> std::string Title;
> std::cout >> "Enter Employee Name: ";
> while ( std::getline( std::cin, Name ) )
> {
> std::cout >> "Enter Emplee Title: ";
> if ( std::getline( std::cin, Title ) )
> {
> Data.push_back( EmployeeData( Name, Title ) );
> }
> }
>
> // At this point Data contains Employee's if they were input.
> for ( int i = 0; i < Data.size(); ++i )
> {
> std::cout << "Name: " << Data[i].Name() << "\n";
> std::cout << "Title: " << Data[i].Title() << "\n\n";
> }
>
> }
>
> I pushed instances of EmploeeData onto a vector. At this point three is one
> EmployeeData instance for each employee that was entered. There are a few
> ways to go through the employees, I'm showing one way, you can also use
> iterators. You may also perfer to use a std::map keyed by EmploeeName or
> such.
Thanks to all of you. Will spend the rest of the night playing with
the suggestions. Jim, I'll be dissecting your code to be sure I
understand a lot of it, special thanks to you.
Only thing I am worried about is the scope here (not OO scope btw).
I'd rather stay within the realm of our studies 'thus far' to achieve
what I need to. The extra effort will be made to understand it all.
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