8/6/2019 Assignment Draft T1 and 2
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Step 1: Requirements
Identify in details the requirements of the system by
producingan input, output and process for the system
Step 2: Design Design a suitable GUI to include input and output
of data.
There should be a dialog box on the start-up of theprogramme
This dialog box first asks the user to enter the name of
thecustomer. After that they can add their other details such
asnumber of DVDs titles of DVDs and the prices as well.
After all this programme will count the total cost of
theirpurchase and it will also count the discount applicable.
After all this process the programme is going to give the
output in the form of JTextArea so that we can show theoutput as
a receipt where all the details will be shown.
Design code using either pseudocode or flowchart.
8/6/2019 Assignment Draft T1 and 2
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Enter the Customer name
Enter the title of the DVD
Quantity of the DVD purchased. q
Do you want to buy another Title?
Yes
No
Calculation
If quantity 4-9 than discount 7%
If quantity 10-14 than discount 12%
If quantity >= 15 than discount 25%
If Quantity < 4 than discount 0%
Save the net price in a variable after deducting the
discount
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Test plan for the application include a set of input data and
expected
output.
Title ofthe DVD
Price Quantity Discount Netprice
VAT(17%)
TotalPrice
Eminem 7.89 7 6.63(12%) 48.6 8.26 56.86
Rihanna 10.00 13 22.10(17%
)
107.6 18.34 125.9
4
Madonn
a
12.00 2 0.00(0%) 24 4.08 28.08
Requirements:
Raul wants the programme to allow the user to input their
informations such as
identification code, title, price of the DVD and the
quantity.
The programme should also allow them to enter their name so that
it can be
displayed on the invoice.
The output of the programme should be displayed in the form of
invoice. Where
they can display the name of the customer, the DVDs they bought
and which
titles. They also want to display the price, discount they got
VAT and the total
money to be paid on the invoice.
We need a dialog box to enter the all input.
The output should be in formatted way e.g. = 25.20
They also want the programme to calculate the discount as
given
We can use JTextArea to get the desired output as invoice.
We need the following variables for this programme:
Name: to save the names of the customers.
Numbers of DVD bought.
Title of the DVD
Net price
Discount Vat
Total price
Calculation
Make sum of net price and VAT (17%) and save it in variable
total price
Print the output in the form of receipt
Output should display names of title, quantity of DVD, Discount,
VAT, Total price.
