// Declare a string variable and assign the value it it.
string myLine = "dotnetspider.com is the best technology site";
string str;
// 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 ("").
string[] strArray = 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
int position = 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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