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Week 3 Q2 Documentation

The document describes pseudocode for a cash register program for a video shop. It includes procedures to calculate change due, denominations of notes and coins, and clearing fields. Amount due and amount tendered are entered, their difference is calculated as change due. Procedures determine the denominations of notes and coins needed to make up the change amount. Controls include labels, text boxes and command buttons to calculate change, clear fields and quit the program.

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111 views5 pages

Week 3 Q2 Documentation

The document describes pseudocode for a cash register program for a video shop. It includes procedures to calculate change due, denominations of notes and coins, and clearing fields. Amount due and amount tendered are entered, their difference is calculated as change due. Procedures determine the denominations of notes and coins needed to make up the change amount. Controls include labels, text boxes and command buttons to calculate change, clear fields and quit the program.

Uploaded by

api-3753662
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
You are on page 1/ 5

Student no.

:0726860 Documentation CP4012


st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
Week 3 - Application 2 – PSEUDOCODE (Video Shop Cash Register)

On the click event of “Calculate” Command Button

Begin
Declaring Doubles amtWhol, amtDue, amtTaken, changeDue
Declaring String amtDeciS, amtDeci, amtWholeS

Read value of txtAmtDue.Text into amtDue


Read value of txtAmtTaken.Text amtTaken
Read into changeDue Subtract value of amtDue from amtTaken

Read value of changeDue into label1.Text


Read value of changeDue into label2.Text
Add an extra line at the end of Label1.Text

Change format to currency of changeDue


Read value of changeDue into lblChangeDue.Text

Read value of changeDue into amtDeciS with CURRENCY format


Read 2 characters from right of Label2.Text into amtDeci
Read value of changeDue into amtWholeS with CURRENCY format
Read last character of round amount of amtWholeS into amtWhol

'""""""""""""""""Function for whole amount"""""""""""""


Declare Double wholeAmtNo1, wholeAmtNo2
Declare String totStrNo
Declare Boolean rtnFunction
Declare Integer i

Initialise totStrNo with empty value


Set rtnFunction to False
set rtnFunction to true if changeDue has decimal values by
calling function findDecimal

If value of rtnFunction is True then


For I = 1 to length of changeDue
If I encounters value “.” Then
STOP
End If
Read ith value from left of changeDue to totStrNo
Next
Else
Read value of changeDue into totStrNo
End If

Read into wholeAmtNo1 subtract value


Read into wholeAmtNo1 Subtracted value of amtWhol from totStrNo
Read value of amtWhol into wholeAmtNo2

Call procedure CalcAmountChangeNote pass the value of wholeAmtNo1


Call procedure CalcAmountChangeCoin pass the value of wholeAmtNo2,”c”

If value of rtnFunction is True Then


Declare Integers no1, no2, totNo, modval, dvdval

1/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
Subtract right 1st value of amtDeciS from amtDeci value, read into
no1
read into no2 right 1st value of amtDeciS

If no1 is not zero Then


Do While until no1 not zero
Initialise totNo with 0
Initialise modval with 0
Initialise dvdval with 0

If no1 is greater than equals to 50 Then


Read remainder of no1 by 50 into modval
Read quotient of no1 by 50 into dvdval
Add values of Label1.Text & new line & value of dvdval
& "*50p" into Label1.Text
Read value of modval into no1
ElseIf no1 greater than equals to 20 Then
Read remainder of no1 by 20 into modval
Read quotient of no1 by 20 into dvdval
Add values of Label1.Text & new line & value of dvdval
& "*20p" into Label1.Text
Read value of modval into no1
ElseIf no1 greater than equals to 10 Then
Read remainder of no1 by 10 into modval
Read quotient of no1 by 10 into dvdval
Add values of Label1.Text & new line & value of dvdval
& "*10p" into Label1.Text
Read value of modval into no1
End If
Loop

End If

If no2 is not zero Then


Call function CalcAmountChangeCoin passing values no2,”p”
End If
End If
End

When procedure CalcAmountChangeNote called (Parameter n1 integer)


Begin
Declare Integers no1, totNo, modval, dvdval
Read value of n1 into no1

Do while until no1 is not 0


Initialise totNo with 0
Initialise modval with 0
Initialise dvdval with 0
If no1 is greater than equals to 20 Then
Read remainder of no1 by 20 into modval
Read quotient of no1 by 20 into dvdval
Add values of Label1.Text & new line & value of dvdval
& "* £20 Note" into Label1.Text
Read value of modval into no1
ElseIf no1 is greater than equals to 10 Then
Read remainder of no1 by 10 into modval

2/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
Read quotient of no1 by 10 into dvdval
Add values of Label1.Text & new line & value of dvdval
& "* £10 Note" into Label1.Text
Read value of modval into no1
End If
Loop

End

When procedure CalcAmountChangeCoin called (Parameters n1 integer, amtPense


String)
Begin
Declare Integers no2, totNo, modval, dvdval
Read value of n2 in no2

Do While until no2 is not 0


Initialise totNo with 0
Initialise modval with 0
Initialise dvdval with 0
If no2 is greater than equals to 5 Then
Read remainder of no2 by 5 into modval
Read quotient of no2 by 5 into dvdval
If amtPense is "p" Then
Add values of Label1.Text & new line & value of dvdval
& "* 5p" into Label1.Text
Else
Add values of Label1.Text & new line & value of dvdval
& "* £5 Note" into Label1.Text
End If
Read value of modval into no2
ElseIf no2 is greater than equals to 2 Then
Read remainder of no2 by 2 into modval
Read quotient of no2 by 2 into dvdval

If amtPense is "p" Then


Add values of Label1.Text & new line & value of dvdval
& "* 2p" into Label1.Text
Else
Add values of Label1.Text & new line & value of dvdval
& "* £2 Coin" into Label1.Text
End If
Read value of modval into no2
ElseIf no2 is greater than equals to 1 Then
Read remainder of no2 by 1 into modval
Read quotient of no2 by 1 into dvdval

If amtPense is "p" Then


Add values of Label1.Text & new line & value of dvdval
& "* 1p" into Label1.Text
Else
Add values of Label1.Text & new line & value of dvdval
& "* £1 Coin" into Label1.Text
End If
Read value of modval into no2
End If
Loop
End

3/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)

When function findDecimal called Parameters(String n1) returns Boolean value


Begin
Declare Integer i
For I = 1 to lenth of n1
If n1 contains “.” Then
Set value of findDecimal to True
Stop
End If
Next
End

On click event of “Clear” Command Button


Begin
Empty txtAmtDue.Text
Empty txtAmtTaken.Text
Empty Label1.Text
Empty Label2.Text
Empty lblChangeDue.Text
Set Cursor in txtAmtDue
End

Forms Designing and Controls Size, Tab Index

Vidoshop Cash Register System

Amount Due Tab Index 0

Amount tendered Tab Index 1

Change Due

Calculate Clear Quit

Tab Index 2 Tab Index 3 Tab Index 4

Controls used for the design are:

Label controls, Text Box controls, Command button controls

Size of Label controls is = 79 (Width), 13 (Height)


Size of Text Box controls is = 100 (Width), 20 (Height)
Size of Command Button controls = (Width, Height)

4/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
Calculate = (75, 23)
Clear = (75, 23)
Quit = (75, 23)

Assumptions:

- Input validation should be made on each input controls


- Error handling should be done

Test Data for the program:

amount Due = £55.78


amount tendered = £79

change Due = £23.22

result:
1*£20 Note
1*£2 coin
1*£1 coin
1*20p
1*2p

Evaluation:

- The program does fulfill the purpose accurately.


- The program is completely error free.
- Final product is completely reliable.
- The program is fully documented.
- The code written for the program can be more compressed by defining
functions.
- The program is not secured, security aspects have not been considered
yet.
- Error handling and Input validations has to be considered.

5/5

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