C# String Join(String, IEnumerable)

Description

String Join(String, IEnumerable <string>)concatenates the members of a constructed IEnumerable collection of type String, using the specified separator between each member.

Syntax

String.Join(String, IEnumerable<String>) has the following syntax.

[ComVisibleAttribute(false)]//w  w w  .  j  a v  a  2  s.  c  om
public static string Join(
  string separator,
  IEnumerable<string> values
)

Parameters

String.Join(String, IEnumerable<String>) has the following parameters.

• separator - The string to use as a separator. separator is included in the returned string only if values has more than one element.
• values - A collection that contains the strings to concatenate.

Returns

String.Join(String, IEnumerable<String>) method returns A string that consists of the members of values delimited by the separator string. If values has no members, the method returns String.Empty.

Example

using System;/*  w ww .  j  av a 2 s  .com*/
using System.Collections.Generic;
using System.Linq;

public class Example
{
   public static void Main()
   {
      string output = String.Join(" ", GetAlphabet().Where( letter => 
                      letter.CompareTo("M") >= 0));
      Console.WriteLine(output);  
   }

   private static List<string> GetAlphabet()
   {
      List<string> alphabet = new List<string>();
      
      alphabet.Add("A");
      alphabet.Add("X");
      alphabet.Add("Z");
      return alphabet; 
   }
}

The code above generates the following result.