Vb.net (loop structure)
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This document discusses VB.NET and looping structures in VB.NET. It defines VB.NET as Visual Basic for the .NET platform, developed by Microsoft. It notes there are three main types of loops in VB.NET: for loops, while loops, and do loops. For loops enable executing code a specified number of times, while loops execute until a condition is false, and do loops execute until or while a condition is true. Examples of each loop type are provided.
![• The For loop is the most popular loop.
•For loops enable us to execute a series of expressions
multiple numbers of times.
•Syntax:
For index=start to end[Step step]
[statements]
[Exit For]
[statements]
Next[index]
Made By: Abhishek Pachisia 5](https://image.slidesharecdn.com/vb-netloopstructure-120415062323-phpapp01/85/Vb-net-loop-structure-5-320.jpg)
![•While loop keeps executing until the
condition against which it tests remain true.
•Syntax:
While condition
[statements]
End While
Made By: Abhishek Pachisia 7](https://image.slidesharecdn.com/vb-netloopstructure-120415062323-phpapp01/85/Vb-net-loop-structure-7-320.jpg)
![•The Do loop keeps executing it's statements while or until the
condition is true.
•Two keywords, while and until can be used with the do loop.
•The Do loop also supports an Exit Do statement which makes
the loop to exit at any moment.
•Syntax:
Do[{while | Until} condition]
[statements]
[Exit Do]
[statements]
Loop
Made By: Abhishek Pachisia 9](https://image.slidesharecdn.com/vb-netloopstructure-120415062323-phpapp01/85/Vb-net-loop-structure-9-320.jpg)
Vb.net (loop structure)
- 1. Presented By: Name : Abhishek Pachisia Course : B.Tech-IT(Sem V) Roll No. : 090102801 Made By: Abhishek Pachisia 1
- 2. What is VB.NET? •It is simply Visual Basic for .NET platform developed by Microsoft. •It has more components and control than Visual Basic Made By: Abhishek Pachisia 2
- 3. Visual Basic loop structures allow to run one or more lines of code repetitively Statements in a loop structure can be repeated Until a condition is True Until a condition is False A specified number of times, or Once for each element in a collection. Made By: Abhishek Pachisia 3
- 4. Types of Looping: There are mainly 3 types of loop: For Loop While Loop Do Loop Made By: Abhishek Pachisia 4
- 5. • The For loop is the most popular loop. •For loops enable us to execute a series of expressions multiple numbers of times. •Syntax: For index=start to end[Step step] [statements] [Exit For] [statements] Next[index] Made By: Abhishek Pachisia 5
- 6. Example: Module Module1 Sub Main() Dim d As Integer For d = 0 To 2 System.Console.WriteLine("In the For Loop") Next d End Sub End Module Made By: Abhishek Pachisia 6
- 7. •While loop keeps executing until the condition against which it tests remain true. •Syntax: While condition [statements] End While Made By: Abhishek Pachisia 7
- 8. Example: Module Module1 Sub Main() Dim d, e As Integer d=0 e=6 While e > 4 e -= 1 d += 1 End While System.Console.WriteLine("The Loop ran " & e & "times") End Sub End Module By: Abhishek Pachisia Made 8
- 9. •The Do loop keeps executing it's statements while or until the condition is true. •Two keywords, while and until can be used with the do loop. •The Do loop also supports an Exit Do statement which makes the loop to exit at any moment. •Syntax: Do[{while | Until} condition] [statements] [Exit Do] [statements] Loop Made By: Abhishek Pachisia 9
- 10. Example: Module Module1 Sub Main() Dim str As String Do Until str = "Cool" System.Console.WriteLine("What to do?") str = System.Console.ReadLine() Loop End Sub End Module Made By: Abhishek Pachisia 10
- 11. Made By: Abhishek Pachisia 11