HELP can't get arraylist to sort by alphabet

[steve smith]

Hi I am new to this language, and still don't understand most of the
concepts, I am trying to sort an arraylist by alphabet, I belive i
need to use the IComparer interface, but have no idea how this works?
Does anyone have a sample of how i can sort my arraylist of words.
Also how is an arraylist iterated over and is it possible to obtain a
count of the number of occurences of each owrd in the array list? Many
thanks.

[Bob Grommes]

Just call the Sort() method of your ArrayList. It will use the IComparable
implementation of the items in the list, in this case, strings. These
should sort as you expect; you don't have to do Sort(IComparer) unless have
some special requirements.

--Bob

"steve smith" <bo**********@h otmail.com> wrote in message
news:4b******** *************** ***@posting.goo gle.com...

Hi I am new to this language, and still don't understand most of the
concepts, I am trying to sort an arraylist by alphabet, I belive i
need to use the IComparer interface, but have no idea how this works?
Does anyone have a sample of how i can sort my arraylist of words.
Also how is an arraylist iterated over and is it possible to obtain a
count of the number of occurences of each owrd in the array list? Many
thanks.

[Bob Grommes]

Steve,

Missed the 2nd parts of your question.

You can iterate over an ArrayList of strings "al" in the following ways:

// for loop

for (int i = 0;i < al.Length;i++) {
string s = (string)al[i];
// do stuff with s
}

// foreach loop

foreach (string s in al) {
// do stuff with s
}

// IEnumerator interface

IEnumerator alEnumerator = al.GetEnumerato r();

while (alEnumerator.M oveNext()) {
string s = (string)alEnume rator.Current;
// do stuff with s
}

To obtain a count of occurences you'll have to write your own routine, along
the lines of:

int Occurs(string strSearch,Array List al) {
int intCount = 0;

foreach (string s in al) {

if (s == strSearch) {
intCount++;
}

}

return intCount;
}

--Bob

"steve smith" <bo**********@h otmail.com> wrote in message
news:4b******** *************** ***@posting.goo gle.com...

Hi I am new to this language, and still don't understand most of the
concepts, I am trying to sort an arraylist by alphabet, I belive i
need to use the IComparer interface, but have no idea how this works?
Does anyone have a sample of how i can sort my arraylist of words.
Also how is an arraylist iterated over and is it possible to obtain a
count of the number of occurences of each owrd in the array list? Many
thanks.