PeterHUistyping / Supermarket-Management-System

C++ OOP Project

Supermarket-Management-System

C++ OOP Project

OS

Windows

Environment

Dev C++ & Visual Studio

Module Division

The functions of each class and their relationship.

Class Supermarket

Member Object: Cash, Goods, just to name a few.
Name: XMUMarket 
Cash: 100

Class Goods

·Includes name of the good, its production_date, its price and its quantity left.
[Implemented by virtual function.] 
Subclasses includes:
·Class DailyGoods 
·Class Food
Includes guarantee_period( day ). 
·Class Electrical_Appliance
Includes its color and maintenance_period. 

Class Order

·Includes the date of the order, lists of goods and relevant information.
After each order is completed, the order information should be printed on the screen and saved locally in txt.
Subclasses includes:
·Class out  decrease in numbers of goods and increase in revenue.
·Class in     the opposite.
Includes the corresponding ID number and the reason for returning. 

The function of each part of the program.

input()；menu();
Inside menu()：
    case 1:sell();
        void Selling_substract(int choice)
    case 2:return_fun();
        void Return_add(int choice) 
    case 3:display();
        -> display(0);display(1);display(2);
    case 4:revenue_fun(); 
    case 5:output(); 

txt File

market_in.txt  
return_out.txt  
order_out.txt  
market_out.txt  

C++

Friend

    friend istream & operator>>(istream & in,Goods & A);
    friend ostream & operator<<(ostream & out, Goods & A);
    friend Goods operator + (Goods& g1,const Goods& g2);
    friend Goods operator - (Goods& g1,const Goods& g2);
    friend Goods operator = (Goods& g1,const Goods& g2);
    friend Goods operator * (int n, const Goods& g2);

(Pure) Virtual Function

Using virtual int get_type() to classify the type of the child.

    virtual int get_type()=0; //0 Daily  //1 Food  //2 EAppliance

Dynamic Binding

    virtual int get_type()=0; //0 Daily  //1 Food  //2 EAppliance

Operator Overloading

    friend Goods operator + (Goods& g1,const Goods& g2);
    friend Goods operator - (Goods& g1,const Goods& g2);
    friend Goods operator * (int n, const Goods& g2);
    friend Goods operator = (Goods& g1,const Goods& g2);

Interface

Initialization

Menu

Sell

Order

Display

Return

Revenue

Save