The method concatenates str0, str1, and str2; it does not add any delimiters.

An string.Empty string is used in place of any null argument.

The following example demonstrates concatenating three strings.

using System;
public class StringConcatExample {
 public static void Main() {
 string str = String.Concat( "one", "two", "three" );
 Console.WriteLine( "The concatenated strings are: {0}", str );
 }
}
   

The output is

The concatenated strings are: onetwothree