lecture (9)repetition

8142019 Lecture (9)Repetition

httpslidepdfcomreaderfulllecture-9repetition 126

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FSB23103

FSB23103 Object OrientedProgramming

Lecture 10

Repetition

Mdm Ratnawati Ibrahim



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FSB23103

Topics

bull Repetition definitionbull Three types of repetition

FOR

WHILE

DO



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Repetition

bull It is used when a block of statements in aprogram are to be repeatedly executed

bull In a computer program a repetition is called aloop



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Repetition ndash examples (1)

bull eg Draw 10 random spots on a picture box

Random Spots



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bull Flow diagram

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Repetition

or loop

Check

condition

The method DrawASpot

is defined in Lecture 8

Initialize

counter

Increment

counter by 1



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Repetition structures

bull In VB there are three kinds of loops FOR

WHILE

DO



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FOR loop (1)

bull eg Draw 10 random spots

Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



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FOR loop (2)

bull eg List all odd numbers under 20

ListBox

lstBox

i = 1

falsei lt= 20

lstBoxItemsAdd(CStr(i))

i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer

For i = 1 To 20 Step 2


Next

FOR

loop

Step

Step



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FOR loop (3)

bull For counter = startVal To endVal Step inc statements

Next

bull counter startVal endVal and inc are numbers

bull Step inc may be omitted when inc equals to 1bull For inc gt 0 endVal gt startVal

bull For inc lt 0 endVal lt startVal

bull The number of repetitions is fixed



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WHILE loop (1)

bull While condition statements

End While

bull Repeats as long as the condition is met

bull Once repetition stops the statement after theEnd While is the next to be executed

bull The test of the condition is always performedat the beginning of the repetition

bull Consequently the body of the loop may not beexecuted at all



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WHILE loop (2)


i = 1

While i lt= 10

DrawASpot()i = i + 1

End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



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DO loop (1)

bull Dostatements

Loop

bull Two types of test conditions

While Until

bull Test condition can be placed at either thebeginning or the end of the loop



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DO loop (2)

bull Test condition at the beginning of the loop the body of the loop may not be executed at

all

Do While conditionstatements

Loop

Do Until conditionstatements

Loop

Repeats as long as the condition is met

(This is the same as the While loop)

Repeats as long as the condition

is not met

It stops once the condition is met



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DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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DO loop (4)

bull Test condition at the end of the loop the body of the loop is executed at least

once

Dostatements

Loop While condition

Dostatements

Loop Until condition

Repeats as long as the

condition is met

Repetition stops once

the condition is met



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DO loop (5)


NoteWhen test condition is

at the end of a DO loop

the loop body is

executed at least once

i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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FOR or WHILE amp DO loops

bull Use FOR loop when the number of repetitions is fixed

the loop control variable is incrementedregularly

bull Use DO or WHILE loops when the precise number of repetitions is

unknown or

the loop control variable is not being

changed in a regular manner



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Exit from a loop (1)

bull Exit For - FOR loop bull Exit While - WHILE loop

bull Exit Do - DO loop



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bull eg List a series of numbers

and their sumif the sum is less than 100

sum = 0

false

i lt= 20

lstBoxItemsAdd(CStr(i) amp Tab amp _

CStr(sum) amp NewLine)

i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



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bull eg use For loop

Dim i sum As Integer

lstBoxItemsAdd(Number amp Tab amp Sum amp NewLine)

sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next

To use control characters you need to add

Imports MicrosoftVisualBasicControlChars

at the top of your programNote In this case it is

better to use While loop



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Example ndash random spots (1)

bull eg Draw a given number of random spotson a picture box

Random Spots



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bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw

TextBoxtxbNSpotPictureBox

picBox

Label

lblEnter



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bull Event handing method cmdDraw_Click Private Sub cmdDraw_Click(ByVal sender As SystemObject _

ByVal e As SystemEventArgs) Handles cmdDrawClick

Dim i As Integer

Dim n As Integer = GetNumber(txbNSpotsText)

If n gt 0 Then

For i = 1 To n

DrawASpot()

Next

ElseMessageBoxShow(Please enter a positive integer)

txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input

Handle invalid input



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Private Function GetNumber(ByVal str As String) As Integer

validate input string

If IsNumeric(str) Then

If CInt(str) gt= 0 Then

Return CInt(str)Else

Return -1 to notify user about negative input

End If

Else

Return -2 to notify user about non-numeric input

End If

End Function

Note The built-in function IsNumeric(str) returns true

if the string str contains a number false otherwise

Function GetNUmber



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Private Sub DrawASpot()

(xy) is the top-left corner of the binding square of a circle

Dim x y diameter red green blue As Integer

paper = picBox1CreateGraphics

diameter = aRandomNoNext(20 50) set circle diameter

set x and y within the picture box

x = aRandomNoNext( 0 picBox1SizeWidth-diameter )

y = aRandomNoNext( 0 picBox1SizeHeight-diameter )

set amount of colour for red green and blue

red = aRandomNoNext(0 255)

green = aRandomNoNext(0 255)blue = aRandomNoNext(0 255)

myBrush = New SolidBrush(ColorFromArgb(red green blue))

paperFillEllipse(myBrush x y diameter diameter)

End Sub

NoteColour range in RGB is 0 to 255

Method DrawASpot



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Summary

bull Three kinds of repetitions or loops

FOR

WHILE

DO

To exit from a FOR loop

Exit For

To exit from a WHILE loop

Exit While

To exit from a DO loop

Exit Do

For counter = startVal To endVal Step inc

statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




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Topics

bull Repetition definitionbull Three types of repetition

FOR

WHILE

DO



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Repetition





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Random Spots



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bull Flow diagram

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Repetition

or loop

Check

condition



Initialize

counter

Increment

counter by 1



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WHILE

DO



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FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



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FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



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FOR loop (3)


Next







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WHILE loop (1)


End While







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WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



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DO loop (1)

bull Dostatements

Loop


While Until




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DO loop (2)


all


Loop


Loop




is not met




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DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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DO loop (4)


once

Dostatements


Dostatements



condition is met





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DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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unknown or





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sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



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sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







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Random Spots



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bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



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Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




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End If

Else


End If

End Function



Function GetNUmber



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End Sub


Method DrawASpot



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Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




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Repetition





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Random Spots



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bull Flow diagram

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Repetition

or loop

Check

condition



Initialize

counter

Increment

counter by 1



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WHILE

DO



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FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



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FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



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FOR loop (3)


Next







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WHILE loop (1)


End While







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WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



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DO loop (1)

bull Dostatements

Loop


While Until




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DO loop (2)


all


Loop


Loop




is not met




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DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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DO loop (4)


once

Dostatements


Dostatements



condition is met





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DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



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unknown or





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sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



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sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







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Random Spots



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bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



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Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




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End If

Else


End If

End Function



Function GetNUmber



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End Sub


Method DrawASpot



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Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




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Random Spots



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bull Flow diagram

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Repetition

or loop

Check

condition



Initialize

counter

Increment

counter by 1



6

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WHILE

DO



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FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



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FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



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FOR loop (3)


Next







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WHILE loop (1)


End While







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WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



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DO loop (1)

bull Dostatements

Loop


While Until




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DO loop (2)


all


Loop


Loop




is not met




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DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




5

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103


bull Flow diagram

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Repetition

or loop

Check

condition



Initialize

counter

Increment

counter by 1



6

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103



WHILE

DO



7

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



8

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



9

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (3)


Next







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




6

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103



WHILE

DO



7

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



8

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



9

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (3)


Next







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




7

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (1)


Dim i as Integer

For i = 1 To 10

DrawASpot()

Next

FOR

loop

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Check

condition

Initialize

counter

Increment

counter by 1



8

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



9

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (3)


Next







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




8

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (2)


ListBox

lstBox

i = 1

falsei lt= 20


i = i + 2

true

Initialize

counter

Test

condition

Increment

counter by 2

Dim i As Integer



Next

FOR

loop

Step

Step



9

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (3)


Next







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




9

U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceI

nstit

ute

FSB23103

FOR loop (3)


Next







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (1)


End While







U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

WHILE loop (2)


i = 1

While i lt= 10


End While

i = 1

falsei lt= 10

DrawASpot()

i = i + 1

true

Initialize counter

Testcondition

Increment

counter by 1



U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (1)

bull Dostatements

Loop


While Until




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (2)


all


Loop


Loop




is not met




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL

A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (3)


i = 1

Do Until i gt 10


Loop

Initialize counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (4)


once

Dostatements


Dostatements



condition is met





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

DO loop (5)




the loop body is


i = 1

Do


Loop Until i gt 10

Initialize

counter

Test

condition

i = 1

truei gt 10

DrawASpot()

i = i + 1

false

Increment

counter by 1



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





unknown or





U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103






U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




sum = 0

false

i lt= 20



i = i + 1

true

IF

Selection

i = 1

false

true

sum lt 100

sum += iFOR

loop



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103





sum = 0

For i = 1 To 20

sum += i

If sum lt 100 Then



Else

Exit ForEnd If

Next







U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103



Random Spots



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103


bull Form design

Button

cmdDrawASpot

Button

cmdClear

Button

cmdClose

Button

cmdDraw


picBox

Label

lblEnter



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103




Dim i As Integer


If n gt 0 Then

For i = 1 To n

DrawASpot()

Next


txbNSpotsText =

txbNSpotsFocus()

End If

End Sub

FOR

loop

Get userinput

Check input




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103








End If

Else


End If

End Function



Function GetNUmber



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103















End Sub


Method DrawASpot



U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements




U

NIVERS

ITIKUAL A

LUMPUR

M

alaysi a

FranceInstit

ute

FSB23103

Summary


FOR

WHILE

DO


Exit For


Exit While


Exit Do


statements

Next

While condition

statements

End While

Do While condition

statementsLoop

Do

statements


Do Until condition

statementsLoop

Do

statements


lecture (9)repetition

Documents