C# String

Learn about the string type in C#, how strings are created, and commonly used string operations.

What is a String?

A string in C# is a sequence of characters treated as a single object, and it is represented internally as an immutable reference type.

Creating Strings

Strings can be created directly using string literals in double quotes, or built dynamically using classes like StringBuilder for frequent modifications.

String Immutability

Once a string is created, its value cannot be changed; any operation that appears to modify a string actually creates a new string object in memory.

Common String Operations

C# provides many built-in methods for strings, such as concatenation, substring extraction, searching, and case conversion, making text manipulation straightforward.