Mastering Strings

Strings are objects in C# that represent text.

Concatenation

Combining strings using the + operator: csharp string firstName = "John"; string lastName = "Doe"; string fullName = firstName + " " + lastName;

Interpolation

A cleaner way to format strings using $: csharp string info = $"My name is {firstName} {lastName}";

Common Methods

• .Length: Gets the number of characters.
• .ToUpper(): Converts to uppercase.
• .ToLower(): Converts to lowercase.
• .Contains(): Checks if a substring exists.