C#

      <br />
//<br />
// Create an array of strings...<br />
//<br />
string[] theArray = "This will become an array of strings".Split(new char[] {' '});<br />
//<br />
// We now have an array of strings containing: <br />
// "This", "will", "become", "an", "array", "of", "strings"<br />
//<br />
// If you want to <remove> the second element AND shrink the array then you need<br />
// to create a new array of shorter length and copy the elements from the original<br />
// to the new array...<br />
//<br />
int removeIndex = 1; // zero based array indexing!<br />
string[] newArray = new string[theArray.Length-1];<br />
//<br />
// This for-loop copies all elements before and after the element that<br />
// you want to remove. It would be SLOW for long arrays!<br />
//<br />
for(int i=0; i < theArray.Length; ++i)<br />
{<br />
  if (i < removeIndex)<br />
    newArray[i] = theArray[i];<br />
  else if (i > removeIndex)<br />
    newArray[i-1] = theArray[i];<br />
}      <br />
//<br />
// newArray constains an array of strings:<br />
// "This", "become", "an", "array", "of", "strings"<br />
//<br />
// For long arrays we can achieve this much quicker by using block-copy:<br />
//<br />
string[] anotherNewArray = new string[theArray.Length-1];<br />
if (removeIndex == 0)<br />
{<br />
  // Special case when removing the first element.<br />
  Array.Copy(theArray, 1, anotherNewArray, 0, anotherNewArray.Length);<br />
}<br />
else if (removeIndex == theArray.Length-1)<br />
{<br />
  // Special case when removing the least element.<br />
  Array.Copy(theArray, 0, anotherNewArray, 0, anotherNewArray.Length);<br />
}<br />
else<br />
{<br />
  // Most cases will require two block copies, before and after removed elm.<br />
  Array.Copy(theArray, 0, anotherNewArray, 0, removeIndex);<br />
  Array.Copy(theArray, removeIndex+1, anotherNewArray, removeIndex, <br />
    theArray.Length-removeIndex-1<br />
    );<br />
}      <br />

using System.Text;<br />
<br />
public string fixPipes(string text)<br />
{<br />
    char ch = ASCIIEncoding.ASCII.GetChars(new byte[] { 0x7C });<br />
    char pipe = '|';<br />
<br />
    return text.Replace(ch,pipe);<br />
}

string text = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Mauris ut dui vitae nulla eleifend malesuada. Aliquam semper tortor nec arcu. Donec consequat tincidunt ipsum. Praesent tempor magna nec massa. Curabitur ut tortor. Fusce massa. Pellentesque vulputate, ante quis mattis euismod, magna elit pretium enim, eu varius nisl eros vel nisl. Pellentesque quis enim. Phasellus eu erat. Ut convallis pede quis purus. Aliquam nec diam ut mauris congue suscipit. Nam eleifend congue sapien. Cras vulputate erat id ligula. Suspendisse potenti. Sed laoreet aliquet lorem.";

// Count
Hashtable charCounter = new Hashtable();
foreach(char c in text.ToCharArray())
{
	if (charCounter.ContainsKey(c))
	{
		charCounter[c] = (int)charCounter[c] + 1;
	}
	else
	{
		charCounter.Add(c, 0);
	}
}
// Test
foreach(char c in charCounter.Keys)
{
	System.Diagnostics.Trace.WriteLine("Char: " + c + " " + charCounter[c]);
}