Strings in C#

Module 11: Strings in C#

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.

Goals:

• Work with Strings;
• Understand Built-in functions;
• Validate input;
• Use Regular Expressions;
• Create Word Games

Objectives:

• 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.

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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
7. Is string a 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 (shuffle) an array
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

Glossary for strings lesson
Full Glossary