how to create an array of elements in java?

Question

I have a code like this:

Element name = doc.createElement("firstname");
name.appendChild(doc.createTextNode(lastname));
extension.appendChild(name);

Now, if I want to make multiple Element names, how do I do then? I tried to simply make "name" into an array but it didnt work:

Element name[] = null;
name[0] = doc.createElement("firstname");
name[0].appendChild(doc.createTextNode(lastname));
extension.appendChild(name[0]);

any suggestions?

That looks a lot like JavaScript. JavaScript is not Java. Java is to JavaScript like Car is to Carpet. — Benjamin Gruenbaum
– Benjamin Gruenbaum, Commented Jun 11, 2013 at 10:00
@BenjaminGruenbaum It look like perfectly valid Java to me. What makes you think it is JavaScript? — Buurman
– Buurman, Commented Jun 11, 2013 at 10:04
@Buurman The usage of the DOM API createElement , createTextNode , appendChild — Benjamin Gruenbaum
– Benjamin Gruenbaum, Commented Jun 11, 2013 at 10:05

Buurman · Accepted Answer · 2013-06-11 10:00:00Z

2

Element name[] = new Element[10]; //or any size

name[] is a reference to an object (Element[] is an object as well). If you set the reference to null you can't dereference it with name[0]=.

Keep in mind that arrays are fixed-size. You might want to look into ArrayList or Vector if you'd like a variable-size datastructure.

answered Jun 11, 2013 at 10:00

Buurman

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1 Comment

Nice, I get it now :) Thx for the reply

Evgeniy Dorofeev · Accepted Answer · 2013-06-11 10:01:04Z

1

try this

Element name[] = new Element[expected_element_number];
name[0] = doc.createElement("firstname");
...

answered Jun 11, 2013 at 10:01

Evgeniy Dorofeev

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