c# - convert string array to string

Question

I would like to convert a string array to a single string.

string[] test = new string[2];
test[0] = "Hello ";
test[1] = "World!";

I would like to have something like "Hello World!"

Answer 1

string[] test = new string[2];

test[0] = "Hello ";
test[1] = "World!";

string.Join("", test);