C#

int desired_line = 3;

for(int current_line = 0, string line; (line = r.ReadLine()) != null; current_line++)
{
   if(current_line == desired_line)
   {
      lines.Add(line);
      break;
   }
}

using System;<br />
using System.IO;<br />
<br />
class MainClass<br />
{<br />
    public static void Main(string[] args)<br />
    {<br />
        try<br />
        {<br />
            FileStream fs = new FileStream("c:\\t1.txt", FileMode.Open);<br />
            StreamReader sr = new StreamReader(fs);<br />
<br />
            string line = "";<br />
<br />
            int lineNo = 0;<br />
            do<br />
            {<br />
                line = sr.ReadLine();<br />
                if (line != null)<br />
                {<br />
                    Console.WriteLine("{0}: {1}", lineNo, line);<br />
                    lineNo++;<br />
                  x=a+b+c;-------->values=?<br />
                }<br />
            } while (line != null);<br />
        }<br />
        catch (Exception e)<br />
        {<br />
            Console.WriteLine("Exception in ShowFile: {0}", e);<br />
        }<br />
    }<br />
}

List<string> lines = new List<string>();
String line;
//add all the lines to a list
while((line = sr.ReadLine()) != null)
{
     lines.Add(line);
}
//read the lines you would like to read:
try
{
   int numberOne = Int32.Parse(lines[0]);
   int numberThree = Int32.Parse(lines[2]);
   int numberFive = Int32.Parse(lines[4]);
   int x = numberOne + numberThree + numberFive;
}
catch {}
</string></string>

string[] TableauString = new string[10]; // Array of 10 strings

TestArray= Array.CreateInstance(typeof(String),"The Size");

using System.Collections;

........

ArrayList myList = new ArrayList();

// Adding an element
myList.Add(new string(" Here is your string "));

// Or you can add elements like this
for(int i=0; i<5; i++)
    myList.Add(new string(" Here is your string "));

using System.Collections;

foreach (string ee in myList) {MessageBox.Show(ee)}

abbd wrote:

there are an exception

for(int i = 0; i < myList.Count; i++)
    MessageBox(myList[i]);

StreamWriter Fichier;	// Déclaration<br />
                        Fichier = File.CreateText(@"C:\CSV1.txt"); <br />
                        foreach (Object obj in myList)<br />
                        { Fichier.WriteLine(obj); }  <br />
                        Fichier.Close();