Java string help please

[Ajoo Bar]

Hi,
I need some help...
I have a java array list. while iterating through list I want to create a string of the element seperated by : How can I do that?

List arrayList = new ArrayList()

Iterator<String> iterator = null;
iterator = compName.iterator();
while (iterator.hasNext()) {
String name = iterator.next();

// Here the string I want to build shold be like IBM:HP:CISCO:Apple

}

[Mathew Mintalm]

What about StringTokenizer class?

[Jeff Verdegan]

AjooAli Dar wrote:Hi,
I need some help...
I have a java array list. while iterating through list I want to create a string of the element seperated by : How can I do that?

List arrayList = new ArrayList()

Iterator<String> iterator = null;
iterator = compName.iterator();
 while (iterator.hasNext()) {
String name  = iterator.next();

// Here the string I want to build shold be like IBM:HP:CISCO:Apple

}

Okay, so what problem are you having? Have you never concatenated Strings before, with with += or with StringBuilder.append()?

[Ajoo Bar]

Thanks, I believe I can use StringBuffer... But not sure How.... StringTokennizer will break the string. I have already those companies into array list and now I want to make one string... of it...

[Jeff Verdegan]

AjooAli Dar wrote:Thanks, I believe I can use StringBuffer... But not sure How.

And? Did you read its docs? Did you google for examples? What did you try and where did you get stuck?

[Ajoo Bar]

Thanks I can use append. but i dont want : to be appended at the end.
company.append(partyName);
company.append(":");

I want
IBM:HP:CISCO

what I am getting IBM:HP:CISCO:

[Jeff Verdegan]

AjooAli Dar wrote:
Thanks I can use append. but i dont want : to be appended at the end.
company.append(partyName);
company.append(":");

I want
IBM:HP:CISCO

what I am getting IBM:HP:CISCO:

So, right now you're saying "add the company name, and then add the :", when what you really should be saying is, "add the company name, and then, if it's not the last one, add the :"

Got that so far?

Now, before you end up beating your head against the wall on that, I'll point out that it's generally easier to implement if you turn it around to, "if it's not the first one, add a :, and then add the company name". That is instead of adding a colon after every one but the last, add it before every one but the first.

[Ajoo Bar]

Ok I used boolean flag to see if it is the first company if it is other than first company I append it a :.