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Hi,

I wrote below code which failed in compilation as compiler complained
the methods add (java.lang.String) are can't solve symobols. The same
method succeeded for LinkedHashSet & TreeSet objects. Why it failed
for ArrayList objects ? The syntax description for ArrayList add
method accepts object type instance.

import java.util.*;

public class ArrayListx {
public static void main (String [] args) {

ArrayList arl = new ArrayList();
arl.add("Chicago");
arl.add("Detroit");
arl.add("Atlanta");
arl.add("Denver");

Iterator it = arl.iterator();
while (arl.hasNext()) {
System.out.println("city "+it.next());
}

for (int i=0; i<4; i++) {

}

}
}

"lonelyplanet999" <> wrote in message
news: om...
> Hi,
>
> I wrote below code which failed in compilation as compiler complained
> the methods add (java.lang.String) are can't solve symobols. The same
> method succeeded for LinkedHashSet & TreeSet objects. Why it failed
> for ArrayList objects ? The syntax description for ArrayList add
> method accepts object type instance.
>
<SNIP>

Try:

...
while (it.hasNext()) {
...

replacing:

while (arl.hasNext()) {

I hope this helps.

Anhony Borla

"lonelyplanet999" <> wrote in message
news: om...
> Hi,
>
> I wrote below code which failed in compilation as compiler complained
> the methods add (java.lang.String) are can't solve symobols. The same
> method succeeded for LinkedHashSet & TreeSet objects. Why it failed
> for ArrayList objects ? The syntax description for ArrayList add
> method accepts object type instance.
>
> import java.util.*;
>
> public class ArrayListx {
> public static void main (String [] args) {
>
> ArrayList arl = new ArrayList();
> arl.add("Chicago");
> arl.add("Detroit");
> arl.add("Atlanta");
> arl.add("Denver");
>
> Iterator it = arl.iterator();
> while (arl.hasNext()) {
^^^

> System.out.println("city "+it.next());
> }
>
> for (int i=0; i<4; i++) {
>
> }
>
> }
> }

you want 'while (it.hasNext())'

"Anthony Borla" <> wrote in message news:<jhZrb.6155$>...
> "lonelyplanet999" <> wrote in message
> news: om...
> > Hi,
> >
> > I wrote below code which failed in compilation as compiler complained
> > the methods add (java.lang.String) are can't solve symobols. The same
> > method succeeded for LinkedHashSet & TreeSet objects. Why it failed
> > for ArrayList objects ? The syntax description for ArrayList add
> > method accepts object type instance.
> >
> <SNIP>
>
> Try:
>
> ...
> while (it.hasNext()) {
> ...
>
> replacing:
>
> while (arl.hasNext()) {
>
> I hope this helps.

Tks

>
> Anhony Borla