How to use addAll() method in ArrayList

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I'm trying to use addAll() method for inserting elements in the ArrayList..

But getting error...

Java

List elements=new ArrayList();
Collections.addAll(elements, "aaa", "Android",123,"java");

But it suggesting use Collection istead of List...

Java

Collection elements=new ArrayList();

what is the reason..???why we its not allowed to use List interface..

Posted 18-Oct-12 19:37pm

Updated 18-Oct-12 19:38pm

JF2015

v2

2 solutions

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TorstenH. · Answer 1 · 2012-10-18T20:02:00

Collection is the mother of all Lists - that's why a Collection can be a ArrayList.

Posted 18-Oct-12 20:02pm

ridoy · Answer 2 · 2012-10-18T20:11:00

Posted 18-Oct-12 20:11pm