Question

Object Oriented Programming using class c++

Program where the users (customers) can add Product name, Product Price, Product Quantity.

Program needs a menu: 1. Add item 2. Get total 3. Display all items

Answer 1

The following c++ program store Product Name, Product Price, Product Quantity in 3 arrays.

Program:

#include <iostream>

using namespace std;
void addItem();
void getTotal();
void display();
string Pname[50];
int pPrice[50];
int pQuantity[50];
int i=0;

int main(void)

{

char selection;

while(selection != 4){
cout<<"\n Menu";

cout<<"\n========";

cout<<"\n 1. Add item";

cout<<"\n 2. Get total";

cout<<"\n 3. Display all items";

cout<<"\n 4 - Exit";

cout<<"\n Enter selection: ";

// read the input

cin>>selection;

switch(selection)

{

case '1' : addItem();

break;

case '2' : getTotal();

break;

case '3' : display();

break;

case '4' :{cout<<"\n To exit the menu";}

break;

// other than 1, 2, 3 and 4...

default : cout<<"\n Invalid selection";

// no break in the default case

}
}

cout<<"\n";

return 0;

}
void addItem(){
cout<<"\n Enter Product name, Product Price, Product Quantity";
cin>>Pname[i];
cin>>pPrice[i];
cin>>pQuantity[i];
i++;
}
void getTotal(){
cout<<i;
}
void display(){
for(int j = 0; j<i; j++){
cout<<Pname[j];

cout<<"\n";
}
}
Screenshot: