1. For…Next : Nested Loop X= 0 For i = 0 To 4 For j = 0 To i-1 X=X+(i+j-1) Next j Next i How many times the inner loop is executed? What is x at the end of this loop?

2. Nested For…Next : Execution i=0 j=0  -1 i=1 j=0  0 i=2 j=0  1 i=3 j=0  2 i=4 j=0  3 No. of times inner loop is executed 01234 x001313 5 8 12 15 19 24 30

3. For…Next : Exit X= 0 For i = 0 To 4 For j = 0 To i-1 If x > 5 Then Exit For End If x=x+(i+j-1) Next j Next I Exit from the inner loop

4. Do…Loop Do While logical expression Executable statement(s) Loop Do Executable statement(s) Loop Until logical expression

5. Do While…Loop

6. Do…Loop Until…

7. Do Loops Sum = 0 Kount = 0 Do While Kount <= 10 Sum = Sum + Kount Kount = Kount + 1 Loop Sum = 55 Kount = 11 Sum = 0 Kount = 0 Do Sum = Sum + Kount Kount = Kount + 1 Loop Until Kount > 10 Sum = 55 Kount = 11

8. Decimal to Binary : Do While Private Sub Command1_Click() Dim Deci As Integer Dim R As Byte, Bin As String Deci = Text1.Text Bin = "" Picture1.Cls If Deci = 0 Then Bin = Str(Deci) End If Do While Deci > 0 R = Deci Mod 2 Bin = Str(R) + Bin Deci = Deci \ 2 Loop Picture1.Print Bin End Sub

9. Decimal To Binary: Do…Until Private Sub Command3_Click() Dim Deci As Integer Dim R As Byte, Bin As String Deci = Text1.Text Bin = "" Picture1.Cls Do R = Deci Mod 2 Bin = Str(R) + Bin Deci = Deci \ 2 Loop Until Deci = 0 Picture1.Print Bin End Sub

10. File Handling  Files are used for large data input/output  Create a.txt file called CarData by using Notepad (or ASCII file using other software) with following contents “Suzuki”, 3, 4 “Toyota”, 5, 7 “Honda”, 4, 15

11. File Handling  Files must be Open ed before any read/write operation.  Files must be Close d after any read/write operation  Syntax Open “CarData” For Input As #138  Opens a file called CarData.txt for read- only and this file will be called #138  The file reference number can be from 1 to 255