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array and arraylist

auvrm papu
Ranch Hand

Joined: Sep 01, 2005
Posts: 105
what is the difference between array and arraylist?

thanks
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 44545
    
  34
The short answer is that an array has a fixed capacity, whereas an ArrayList can change its capacity as required.

Arrays are set up without using a special class; ArrayLists (capital A and L) are set up using the java.util.ArrayList class.

You can find out about arrays here in the Java tutorial, and about ArrayLists in the API specification or here in the Java tutorial.

CR
 
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It's not a secret anymore!