How do I concatenate strings in C#?

How do I concatenate strings in C#?

In C#, you can concatenate strings using the '+' operator, String.Concat, or StringBuilder. Which method would you like to know more about?

Can you show me an example using the '+' operator?

Sure! Here's a simple example:

string firstName = "John";
string lastName = "Doe";
string fullName = firstName + " " + lastName;
Console.WriteLine(fullName); // Output: John Doe

What about using StringBuilder?

Using StringBuilder is more efficient for concatenating multiple strings. Here's an example:

StringBuilder sb = new StringBuilder();
sb.Append("Hello");
sb.Append(" ");
sb.Append("World");
Console.WriteLine(sb.ToString()); // Output: Hello World