C#:Find Position

C#:String Functions

Contains

Ends With

Equal Strings

Find Position

Formatting

Using Print Formatting

Lower Case

Join Strings

Starts With

String Length

Special Characters

Split a String

Substring

Upper Case

You can find where one string occurs within another. If the substring occurs at the very start you'll get 0. If the substring is not there you get -1.

Find first occurance

Use s.IndexOf(t) to find where t occurs in s.

s.indexOf("t") gives the character position of the first "t" in s.

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using System; public class P{ public static void Main(string[] argv) { foreach (String s in "One two three\nfour five six".Split('\n')) Console.WriteLine("{0,-15}\t{1}",s,Q(Qs.IndexOf("t")Q)Q); } }

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test text

 

 

 

 

Find last occurance

Use s.LastIndexOf(t) to find the last place where t occurs in s.

s.lastIndexOf("t") gives the character position of the last "t".

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using System; public class P{ public static void Main(string[] argv) { foreach (String s in "One two three\nfour five six".Split('\n')) Console.WriteLine("{0,-15}\t{1}",s,Q(Qs.LastIndexOf("t")Q)Q); } }

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test text

 

 

 

 

Find occurance after ...

Use s.indexOf(t,n) to find where t occurs in s.

s.indexOf("t",5) gives the character position of the first "t" after position 5.

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using System; public class P{ public static void Main(string[] argv) { foreach (String s in "One two three\nfour five six".Split('\n')) Console.WriteLine("{0,-15}\t{1}",s,Q(Qs.IndexOf("t",5)Q)Q); } }

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test text