Chapter six exercises

6.1

1. 17

2. 0 1000

1 1100

2

3. You are a super programmer!

7. The value of q keeps growing until the program crashes when the value exceeds the upper limit for a variable of the type Single.

8. Program never stops. The line n = 1 should appear before the Do loop.

11. While num >= 7

12. While nom <> "Bob"

13. Until response <> "Y"

14. Until total <> 10

15. Until nom = ""

16. While balance < 100

17. Until (a <= 1) Or (a >= 3)

18. While (ans <> "") And (n <> 0)

19. While n = 0

20. Until (ans <> "Y") Or (n >= 7)

Private Sub cmdDisplayConvTable_Click() Dim celsius As Single picTempTable.Cls picTempTable.Print "Celsius"; Tab(10); "Fahrenheit" celsius = -40 Do While celsius <= 40 picTempTable.Print celsius; Tab(10); (9 / 5) * celsius + 32 celsius = celsius + 5 LoopEnd Sub

Private Sub cmdFindPrimeFactors_Click() Dim n As Integer, f As Integer 'Prime factorization picFactors.Cls n = Val(InputBox("Enter an integer greater than 1:")) picFactors.Print "The prime factors of"; n; "are:" f = 2 Do While n > 1 If (n Mod f) <> 0 Then 'Or If Int(n/f) <> n/f Then f = f + 1 Else picFactors.Print f; n = n / f End If LoopEnd Sub

6.2

1. 13 2. Roxie 3. pie

Velma cake

melon

4. Chicago 8.8

New York 20.1

6.3

1. Pass # 1

Pass # 2

Pass # 3

Pass # 4

2. 6 8 10 12

3. 2 4 6 8 Who do we appreciate?

8. Average = 90

17. Private Sub cmdDisplay_Click() Dim num As Integer For num = 1 To 10 Step 2 picOutput.Print num Next num End Sub18. Private Sub cmdDisplay_Click() Dim num As Integer For num = 1 To 4 picOutput.Print "hello" Next num End Sub

19.Private Sub cmdDisplay_Click() Dim i As Integer 'Display a row of 10 stars picOutput.Cls For i = 1 To 10 picOutput.Print "*"; Next iEnd Sub

20.Private Sub cmdDisplay_Click() Dim i As Integer, stars As Integer 'Display a row of stars picOutput.Cls stars = Val(InputBox("Row length (1-20) : ")) For i = 1 To stars picOutput.Print "*"; Next iEnd Sub

21.

Private Sub cmdDisplay_Click() Dim i As Integer, j As Integer 'Display 10 x 10 array of stars picOutput.Cls For i = 1 To 10 For j = 1 To 10 picOutput.Print "*"; Next j picOutput.Print Next iEnd Sub

35.Private Sub cmdDraw_Click() Dim stars As Integer, i As Integer picOutput.Cls picOutput.Font.Name = "Courier New" stars = Val(InputBox("Number of stars?")) For i = 1 To stars

picOutput.Print "*"; Next i picOutput.Print For i = 1 To stars - 2

picOutput.Print "*"; For j = 1 To stars - 2 picOutput.Print " "; Next j picOutput.Print "*"

Next i For i = 1 To stars

picOutput.Print "*"; Next i End Sub

36.Private Sub cmdDraw_Click() Dim stars As Integer, topSize As Integer 'Draw a triangle picOutput.Cls picOutput.Font.Name = "Courier New" topSize = Val(InputBox("Enter an odd number:")) For stars = topSize To 1 Step -2 For i = 1 To stars picOutput.Print "*"; Next i picOutput.Print Next starsEnd Sub