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What is autoboxing in java...?

Abhijit Kangale
Ranch Hand

Joined: Sep 17, 2009
Posts: 39
Hi everyone,

What is the meaning of autoboxing in java...?

Thanks & Regards,
Jesper de Jong
Java Cowboy
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Joined: Aug 16, 2005
Posts: 14074

Java 5 Language Features: Autoboxing

Note that simple questions like this can quickly be answered by Google - try searching for "java autoboxing" for more links.

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Maneesh Godbole
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Joined: Jul 26, 2007
Posts: 10171


I do not mean to sound rude or anything, but I have been noticing you are posting a lot of "what is..." and "how to..." type questions. Of course this would mean you are very keen on learning new stuff. However it might be a good idea to read

To get the most out of the Ranch, please do take out time to go through

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Nishan Patel
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Joined: Sep 07, 2008
Posts: 684


I give you simple example. As you know List and when you declare list it add object.

In above code you can see when you declare primitive data type int to add list we have to convert into wrapper class or say object. That is use in Pre java 1.5 or upto java 1.4

but java 1.5 use Auto boxing and automatically convert into object or wrapper class that is called autoboxing.

in java1.5

Thanks, Nishan Patel
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Rob Spoor

Joined: Oct 27, 2005
Posts: 19655

Autoboxing is Java Programming 101 these days. Moving to Beginning Java.

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I agree. Here's the link:
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