Student no.
:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
Week 4 - Application 2 – PSEUDOCODE (Student Grade Processing System)
Declaring public variables
Public Class Form3
Begin
Declare string array of two dimension studentData(4, 4)
Declare integer totStdCount
End
End class
On the click event of “Save Data” Command Button
Begin
Declare integers i, m
For i=0 to the last element of an array
If ith,0th element of an array is null or not empty then
Get value of I in to m
STOP
End If
Next
read value of txtStdName.Text into mth,0th element of an array
read value of txtTotMark.Text into mth,1st element of an array
read value of txtAvgMark.Text into mth,2nd element of an array
read value of txtGrade.Text into mth,3rd element of an array
Declare object ctrl of Control class
For each controls in current form’s control collection
If Control type is TextBox Then
Empty the Textbox
End If
Next
Add 1 to totStdCount
Empty readonly textbox txtTotMark
Empty readonly textbox txtAvgMark
Empty readonly textbox txtGrade
End
On the textchanged event of “Assessment4” Textbox
Begin
Declare Integers totMarks, avgMark
Add value of txtAssm1.Text, txtAssm2.Text, txtAssm3.Text, txtAssm4.Text to
totMarks
read value of totMarks into txtTotMark.Text
avgMark = totMarks / 4
Get value of avgMark into txtAvgMark.Text
#Check for the Grades
If totMarks is greater than equals to 70 And totMarks is less than equals
to 100 Then
Read “A” into txtGrade.Text
ElseIf totMarks is greater than equals to 60 And totMarks is less than
equals to 69 Then
Read “B” into txtGrade.Text
1/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
ElseIf totMarks is greater than equals to 50 And totMarks is less than
equals to 59 Then
Read “C” into txtGrade.Text
ElseIf totMarks is greater than equals to 40 And totMarks is less than
equals to 49 Then
Read “D” into txtGrade.Text
ElseIf totMarks is greater than equals to 30 And totMarks is less than
equals to 39 Then
Read “E” into txtGrade.Text
ElseIf totMarks is greater than equals to 0 And totMarks is less than
equals to 29 Then
Read “F” into txtGrade.Text
End If
End
on the click event of “Total no. of students” command button
Begin
Display “Total No. of students =” & value of totStdCount
End
on the click event of “Highest Marks” command button
Begin
Declare integers i, m, HigMarks, marks, hMarkCount
Declare String stdNm
If first element of array is not null or not empty then
For m=0 to the last element of an array
If second element of array is not null or not empty then
read value of second element of array into marks
End If
Initialize: hMarkCount with 0
For i=0 to the last element of an array
If first element of array is not null or not empty then
If ith,1st element of an array is less than equals to marks then
Add 1 to hMarkCount
End If
End If
Next
If value of hMarkCount equals to totStdCount Then
read value of marks into HigMarks
read value of mth,0 element of an array into stdNm
stop
End If
Next
Display "Name of student =" & value of stdNm & " with highest
marks =" & value of HigMarks
End If
End
On the click event of “Lowest marks” Command Button
Begin
Declare integers i, m, lwMarks, marks, lMarkCount
Declare string stdNm
2/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
If first element of array is not null or not empty then
For m=0 to the last element of an array
If mth,1st element of an array is not null or not empty then
read mth,1st element’s value of an array in to marks
End If
initialise lMarkCount with 0
For i=0 to the last element of an array
If ith,1st element of an array is not null or not empty Then
If ith,1st element’s value of an array is less than equals to marks Then
Add 1 to lMarkCount
End If
End If
Next
If value of lMarkCount equals to 1 Then
read value of marks into lwMarks
read value of mth,0th element’s value of an array in to stdNm
STOP
End If
Next
Display "Name of student =" & value of stdNm & " with lowest marks =" & value of
lwMarks
End If
End
On the click event of “No. of Students gaining Each Grade” command Button
Begin
Declare integers i, m, gradeCount, gA, gB, gC, gD, gE, gF
Declare strings stdNm, grade
If the first element of an array is not Null or Empty Then
For m=0 to the last element of an array
If mth,3rd element of an array is not null or not empty Then
read value of mth,3rd element’s value of an array in to grade
Initialize gradeCount with 0
If value of grade equals to "A" Then
Add 1 to gA
End If
If grade = "B" Then
Add 1 to gB
End If
If value of grade equals to "C" Then
Add 1 to gC
End If
If value of grade equals to "D" Then
Add 1 to gD
End If
If value of grade equals to "E" Then
Add 1 to gE
End If
If value of grade equals to "F" Then
Add 1 to gF
End If
End If
Next
Display "Grade A=" & value of gA & next line & "Grade B=" & value of gB & next
line & "Grade C=" & value of gC & next line & "Grade D=" & value of gD & next
3/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
line & "Grade E=" & value of gE & next line & "Grade F=" & value of gF & next
line)
End If
End
On the click event of “Average Marks” command Button
Begin
Declare Integers i, totMarksCount
For i=0 to the last element of an array
If ith,1st element of an array is not null or not empty Then
Add ith,1st element’s value of an array to totMarksCount
End If
Next
Display "Average marks of students is = " & value of (totMarksCount /
totStdCount)
End
Forms Designing and Controls Size, Tab Index
Students Marks, Grade Processing System
Tab Index 0
Name
Tab Index 1
Assessment1
Tab Index 2
Assessment2
Tab Index 3
Assessment3
Tab Index 4
Assessment4
Total Marks
Average Marks
Tab Index 11
Grade
Quit
Save Data Tab Index 5
Total No. of Highest Lowest No. of students gaining Average
Students Marks Marks each grade Marks
Tab Index 6 Tab Index 7 Tab Index 8 Tab Index 9 Tab Index 10
Controls used for the design are:
Label controls, Text Box controls, Command button controls
4/5
Student no.:0726860 Documentation CP4012
st
Name: Altafhusain Khan Msc. Computer Science(1 Semister)
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)
Total No. of Students = (75, 37)
Highest Marks = (78, 37)
Lowest Marks = (75, 37)
No. of students gaining each
grade = (111, 37)
Average Marks = (75, 37)
Quit = (75, 37)
Assumptions:
- Input validation should be made on each input controls
- Error handling should be done
- Proper data display should be create so that all the details of the student
can be viewed
Test Data for the program:
Student Name john Kevin martin
Assessment1 22 12 20
Assessment2 21 14 21
Assessment3 23 16 23
Assessment4 25 16 21
Total Marks 91 58 85
Average Marks 23 14 21
Grades A C A
Command Buttons click’s results:
Tot no. of students = 3
Highest marks = name of student john with highest marks 91
Lowest marks = name of student kevin with highest marks 58
No. of students gaining each grade = GRADE A=2, GRADE C=1
Average Marks = 78
Evaluation:
- The program does fulfill the purpose accurately.
- The program is completely error free.
- The program is fully stable for small volume of data.
- It is advisable to use database for large amount of data.
- Final product is completely reliable.
- The program is fully documented.
- The program is not secured, security aspects have not been considered
yet.
- Error handling and Input validations has to be considered.
5/5
