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/////////////////// [ processing shopping list ]//////////////////////
// - include section -
#include < iostream.h>
const m = 50
// - class declaration -
class items
{
int itemcode[m]
float itemprice[m]
int count
public:
void cnt(void) { count = 0 } // initializes count to 0
void getitem(void)
void displaysum(void)
void remove(void)
void displayitems(void)
}
//===================== member functions definitions ==============
void items : : getitem( void) // assign values to members
{
cout < < "enter item code:"
cin > > itemcode [ count ]
cout < < "enter item cost :"
cin > > itemprice[ count ]
count++
}
void items : : displaysum( void ) // display total value
{
float sum = 0
for( int i = 0 i < count i++)
{
sum += itemprice[i]
}
cout < < "\ntotal value :" < < sum < < "\n"
}
void items : : remove( void ) // deleting a specified item
{
item a
cout < < "enter item code :"
cin > > a
for( int i = 0 i < count i++)
{
if (itemcode[i] == a )
{
itemprice[i]=0
}
}
}
void items : : displayitems(void) // displaying items
{
cout < < "\n code price \n"
for(int i = 0 i < count i++)
{
cout < < "\n" < < itemcode[i]
cout < < " " < < itemprice [i]
}
cout < < "\n"
}
// ====================== main program ======================
int main(void)
{
items order
order.cnt( )
int x
do // do …. while loop
{
cout < < "\n you can do the following:"
< < " enter appropriate number \n"
cout < < "\n1 : add an item "
cout < < "\n2 : display total value "
cout < < "\n3 : deleting an item"
cout < < "\n4 : display all items"
cout < < "\n5 : quit"
cout< < "\n\nwhat is your option?"
cin > > x
switch(x)
{
case 1 : order.getitem() break
case 2 : order.displaysum() break
case 3 : order.remove() break
case 4 : order.displayitems() break
case 5 : break
default : cout < < "error in input try again\"
}
} while ( x != 5) // do .. while ends
return(0)
}
/////////////////////////< program 5.3 > ////////////////////////////////
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