CS304 Object Oriented Programming Assignment No 4 Solution and Discussion Spring 2014

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Solution Guidelines:



In Load () function of Transport class, a message should be displayed “Goods are loaded successfully”.


In Unload () function of Transport class, a message should be displayed “Goods are unloaded successfully”.




Ship() function of each class should display a message representing each class. Each class will display their own message when this function call will be made. For example, against Ship () function of Land_Transport class, message “In land transport, shipping is done via Truck" should be displayed and against Ship () function of Air_Transport class, message “In air transport, shipping is done via air cargo" should be displayed.
Behavior of ship () function must be implemented using polymorphism.

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[SIZE="3"]class Transport
{
private:
float Weight,Speed;
string Capacity;
public:
void Load()
{
cout"\nGoods are loaded successfully\n";
}
void Unload()
{
cout"Goods are Unloaded successfully\n";
}
virtual void Ship(){} OR virtual void Ship()=0;

};

class Land_Transport :public Transport
{
private:
string Transportation_Mode;
string Vehicle_Type;
public:
void Ship()
{
cout"In land transport, shipping is done via Truck";
}
};

class Air_Transport :public Transport
{
private:
string Aircraft_Type;
string Airline_Name;
public:
void Ship()
{
cout"\nIn air transport, shipping is done via air cargo\n\n";
}
};

int main(int argc, char *argv[])
{
char choice;
while(1)
{
cout"\n\nDo you want to transport your goods? <Press Y for YES, & N for NO>\n\n";
cout"*************************************\n\n";
choice = getch();
if(choice == 'y' || choice == 'Y')
{
Menu();
}
cout"\nThank You for using this Program...";
}

}

void Menu()
{
Transport *ptr=NULL;

char tpt;

cout"Press 'L' or 'l' to use Land Transport Service\n\n";
cout"Press 'A' or 'a' to use Air Transport Service\n";
cout"*************************************\n";
tpt = getche();
if(tpt == 'A' or tpt == 'a')
{
ptr=new Air_Transport();
ptr->Ship();
}

if(tpt == 'L' or tpt == 'l')
{
ptr=new Land_Transport();
ptr->Ship();
}
getch();[/SIZE]
}