' Declare a string variable and assign the value it it.
Dim myLine As String = "dotnetspider.com is the best technology site"
Dim str as String
' extract portion of the string - starting from position 0, get 16 characters.
str = myLine.Substring(0, 16)
Console.WriteLine(str) ' Displays : dotnetspider.com
' extract portion of the string - starting from position 17, get 12 characters.
str = myLine.Substring(17, 12)
Console.WriteLine(str) ' Displays : is the best
' Split the line into words. Split based on the space ("").
Dim strArray As String() = myLine.Split(" ")
Console.WriteLine("strArray has " & strArray.Length & " words") ' Displays : strArray has 6 words
' Convert all characters to UPPERCASE
str = myLine.ToUpper()
Console.WriteLine(str) ' Displays : DOTNETSPIDER.COM IS THE BEST TECHNOLOGY SITE
' Find location of a word in a string
Dim position As Int16 = myLine.IndexOf("best")
Console.WriteLine(position) ' Displays : 24
' Insert a string into another string in specific position
str = myLine.Insert(20, "one of ")
Console.WriteLine(str) ' Displays : dotnetspider.com is one of the best technology site
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