Suppose the string "Hello World" is given, I need to get the string "H ello W orld" How can I do this in C #?

  • And instead of a space between words should be two spaces or one? - Alexey Shimansky

2 answers 2

If instead of a space between words there should be only one space, and not two, then so:

string test = "Hello world"; test = test.Replace(" ", string.Empty); var result = String.Join(" ", test.ToCharArray()); Console.WriteLine(result);

If instead of a space, you make two spaces (that is, consider it to be the same equal character as the letters in the string), then you just need to comment out the line

 test = test.Replace(" ", string.Empty);

Replace - Returns a new line in which all occurrences of the specified line in the current instance are replaced by another specified line.

ToCharArray - splits a string into a char array

Join - Interconnects the specified elements of the array of strings, placing between them the specified separator.

  • You can just say: ideone.com/xScYru - VladD
  • @VladD did not know, until today) - Alexey Shimansky

You can regular:

 string input = "Hello World"; var result = Regex.Replace(input, "(.)", "$1 ");

You can brute force:

 string input = "Hello World"; StringBuilder result = new StringBuilder(); foreach (var chr in input) { result.Append(chr+ " "); } result = result.ToString().TrimEnd();

You can also use LINQ:

  string input = "Hello World"; string result = string.Join("", input.Select(x => x + " "));
  • in a loop, the result type is best changed to StringBuilder and use the Append () method. In the current view, the cycle will generate tons of garbage lines. - rdorn
  • @rdorn, yes indeed. Corrected. - iluxa1810 9:09