DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
Question 1
Write a complete program to calculate the total price of a holiday package based on the selected package
and number of adults and children input by the user. Use the given class:
class TravelPackage
{
public:
char package;
int noAdult, noChild;
float adultPrice, childPrice, discount, totalPrice;
};
Use the following requirements and sample input and output to write the program.
Use do…while statement to prompt the user for correct package selection. If the input is incorrect display
“Invalid selection” and prompt again for package selection.
Use switch statement to determine the price based on the available package.
Package Price (RM)
A Adult = 1000.00
Child = 500.00
B Adult = 800.00
Child = 600.00
C Adult = 500.00
Child = 300.00
Use if statement to deduct 20% from the total price if the price is greater than RM3000.00.
Sample Output Screen
Select travel package <A,B,C> : L
Invalid selection.
Select travel package <A,B,C> : A
Enter no of adult : 4
Enter no of children : 3
Total price : RM4400.00
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DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
Question 2
Scenario: Finding the Volume of a Cuboid
A cuboid is a 3 dimensional shape.
So to work out the volume we need to know 3 measurements.
Look at this shape.
There are 3 different measurements:
Length, Width, Height
a) Given the class declarations in the program below, write the complete codes for required member
functions based on your analysis of the program output.
Note: Your functions may be defined inside the class or outside the class.
#include<iostream>
using namespace std;
class Cuboid
{ int length, width, height, volume;
public:
void setdata();
void findVolume();
void display();
};
int main()
{ Cuboid Q;
Q.setdata();
Q.findVolume();
Q.display();
return 0;
}
Sample Output Screen
Enter the width, length, height of a Cuboid object :4 8 2
------Display Cuboid Data-----
Width :4 cm
Length :8 cm
Height :2 cm
Volume :64 cm^3
b) Based on your solution, include additional accessor functions to return the data members for this class.
Remove the function call (Q.display()) in your main(), and display the data members for Q object by
calling the accessor functions.
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DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
Question 3
a) Write a complete program based on the following information.
A. Create a class called Purchase.
(i) Data member (set to private) : name(char), code(char), qty(int), price(float) and total(float).
(ii) Member function (set to public) : define the member functions outside of the class.
(a) set_data(…)
To set all the data to the appropriate variables.
(b) calculate()
Calculate the total amount of payment to be made.
(c) print()
Display all the information on screen.
B. In main() function, do the following:
(i) Create an object of class Purchase called p.
(ii) Get inputs from the user and pass the data to method set_data() so that the values can be
set to the appropriate variables.
(iii) Call function calculate() to calculate the total amount to be paid by a customer.
(iv) Call function print() to display all the information as shown below.
Sample Output Screen
========================
WELCOME
========================
Enter name : Jacob
Product code : C101
Enter quantity : 2
Enter price : RM 20
========================
RECEIPT
========================
Name : Jacob
Product Code : C101
Quantity : 2
Product Price : RM 20
Total Payment : RM 40
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DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
b) Modify the program above, so that it will continue to execute until the re is no customer or ‘N’ to
purchase another item.
(Use do-while loop for this program). The suggested output is shown below.
Sample Output Screen
========================
WELCOME
========================
Enter name : David
Product code : C102
Enter quantity : 3
Enter price : RM 30
========================
RECEIPT
========================
Name : David
Product Code : C102
Quantity :3
Product Price : RM 30
Total Payment : RM 90
You have another customer to purchase item? [Y/N]: Y
========================
WELCOME
========================
Enter name : James
Product code : C103
Enter quantity : 1
Enter price : RM 100
========================
RECEIPT
========================
Name : James
Product Code : C103
Quantity :1
Product Price : RM 100
Total Payment : RM 100
You have another customer to purchase item? [Y/N]: N
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DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
Question 4
Write a C++ program that contains:
A constant global variable SIZE with value 8.
A class Stationery_Inventory with the following:
o Private data members : code name (string); warehouses[SIZE] (int)
o Public member functions:
display_reverse( )
- Display the array elements of warehouses in reverse order using any looping structure.
set_data( int* )
- Get user input for code name.
- The function has a pointer argument.
- In a for loop, use the pointer argument to initialize warehouses array.
A global object declaration, named hold.
A function named process() :
o Refer to label ‘process()’ at sample output.
o Get user input for 8 values that should be stored in a local array.
o Using global object hold, call function set_data(…), passing the array and also call
display_reverse() after that.
In the main():
i. Declare an object of the class above
ii. Declare an array of 8 integer elements and initialize it with the values {5, 10, 15, 22, 20, 25, 30, 35}
iii. Using the object (created at (i)), make function call to set_data(….) passing the array declared at (ii).
iv. Using the object (created at (i)), make function call to display_reverse().
v. Call process().
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DCP5201 | OBJECT ORIENTED PROGRAMMING LAB 3
Sample Output Screen
SMART Stationery Shop
######################################
Item Entry
--------------------------------------
Enter Stationery code: PT123
-------------------------------
The Inventory Info
-------------------------------
Stationery code :PT123
Warehouse 1 :35
Warehouse 2 :30
Warehouse 3 :25
Warehouse 4 :20
Warehouse 5 :22
Warehouse 6 :15
Warehouse 7 :10
Warehouse 8 :5
--------------------------------------
Colourful Book Holder Stock
--------------------------------------
Enter the stocks for 8 warehouses:
30
45
15 process ( )
25
50
19
80
60
######################################
Item Entry
--------------------------------------
Enter Stationery code: PT321
-------------------------------
The Inventory Info
-------------------------------
Stationery code :PT321 process ( )
Warehouse 1 :60
Warehouse 2 :80
Warehouse 3 :19
Warehouse 4 :50
Warehouse 5 :25
Warehouse 6 :15
Warehouse 7 :45
Warehouse 8 :30
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