How to convert an ArrayList to an Array in Java [duplicate]

Question

Possible Duplicate:
How to store arrayList into an array in java?

I want to know how can I convert an ArrayList into an Array.

Is there any method to do so in Java?

Can anyone help me about this?

PermGenError · Accepted Answer · 2013-02-01 15:08:48Z

7

yep, there is check out the List API:

Example:

List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
Integer[] arr = list.toArray(new Integer[list.size()]);

answered Feb 1, 2013 at 15:08

PermGenError

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2 Comments

I need to get results from a ResultSet in an Array after converting the ArrayList to Array. How to do so?

iterate over your result set, populate the arraylist and then convert it into the array appriately as shown in the answer.

kevingreen · Accepted Answer · 2013-02-01 15:08:52Z

0

There is the .toArray() function for an array list that should accomplish that.

answered Feb 1, 2013 at 15:08

kevingreen

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