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Strings in C#

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Strings in C#

Work with Strings; Built-in functions; Validate input; Regular Expressions; Word Games

There are many functions for working with strings.
For instance, you can extract just part of a string, tell if one string is embedded inside another string, and replace one string with another.

In order to do this you will:

• Know the various built-in string functions;
• Apply string functions in creating word games;
• Use string functions to validate input data;
• Be able to create and use Regular Expressions for string validation.

Please study the material at each of the links below.

1. Microsoft Reference: Strings and String methods
   
   

2. String Functions: Examples of the most used string methods
   
   
3. String Length: Length gives the number of ALL characters in the String
   
   
4. String Substr: Substr extracts a portion of a string
   
   
5. Names: Using String Functions: Split name into first and last
   
   
6. Escape Sequence: \ and @: Using the \ and @ with strings with special characters
   /csharp/videos/csharp-escape.mp4
   
7. String is valid Social Security Number.: A valid Social Security number has 9 digits
   
   
8. Regular Expressions: A regular expression is a way to determine if a string matches a pattern.
   
   
9. Regular Expressions for a sentence: A sentence must have letters of the alphabet and end with . ? or !
   
   
10. Regular Expression for Robot: R2D2, C3P0?: Regex robotregx= new Regex(@"([A-Z][0-9]){2}");
    
    
11. Regular Expression Drill: Test your understanding
    
    
12. Scramble Array Algorithm: Easy algorithm to scramble an array
    /videos/scramble.mp4
    
13. Anagram Demo: An anagram is simply the letters of the word scrambled
    
    
14. Anagrams: Details for creating the form
    
    
15. Cryptogram Demo: A cryptogram shuffles the alphabet to create a code
    
    
16. Cryptograms: Details for creating the form
    
    
17. Comparing strings: Download the PDF file
    
    

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