C# Strings In C#, a string is a sequence of characters that represent text. Strings are reference types and are implemented as instances of the System.String class. Here are some basic operations you can perform with strings in C#: Creating a string: string s1 = "hello"; string s2 = "world"; string s3 = s1 + " " + s2; // s3 is "hello world" Getting the length of a string: string s = "hello"; int..