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arraylist

1 reply on 1 page. Most recent reply: Oct 23, 2002 6:03 AM by Parag Doshi

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peter

Posts: 1
Nickname: peter12
Registered: Oct, 2002

arraylist

Posted: Oct 22, 2002 2:35 AM

I have a method (getName) that returns an arraylist. Now i wanna put an element in a textarea, and that if you press a button you go to the next element (or the previous or last...).
I tried to work with an iterator for a combobox on the following manner
(getName returns an arraylist) and it works. But if I want to apply it to a textarea or a textfield (by replacing the addItem method by setText) it gives an error. Could anyone help me please.
I think i have to work with indexes or something, but since i am a beginner i don't know the code for this. Code would be helpful.

//for the combobox:
Data data= new Data();
ArrayList list1= data.getName();
Iterator iterator1= list1.iterator();
while (iterator1.hasNext()){
namecombobox.addItem(iterator1.next());
}

peter

Parag Doshi

Posts: 2
Nickname: parag
Registered: Oct, 2002

Re: arraylist

Posted: Oct 23, 2002 6:03 AM

From what I can understand, the iterator.next() returns an Object and as addItem takes any Object type as a parameter, ur code used to work. The setText method could be taking a String as a parameter, so to make it work, u would have cast it to a String (assuming the arraylist has objects of type String). For eg.

comboBox.setText((String)i.next());

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