Converting an arraylist to a normal array

Question

I was wondering if anyone would be able to show me how to convert an arraylist to normal array in Jsp?

Jack · Accepted Answer · 2010-10-21 21:35:01Z

1

yourArrayList.toArray()

but this won't be generic.. to use the generic version, let's assume you've got an ArrayList<Yourclass>. Just do:

YourClass[] array = yourArrayList.toArray(new YourClass[0]);

A side note: JSP is not a language but a container of Java code and html so what you need is Java code..

answered Oct 21, 2010 at 21:35

Jack

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1 Comment

SiLent SoNG Over a year ago

Here you created an empty array (new YourClass[0]) which is soon discarded. This would be much better: yourArrayList.toArray(new YourClass[yourArrayList.size()]); The same array will be returned.

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