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Sorry, I still don't understand, when executing "firstNode = null", wether firstNode.data = null or firstNode.nextNode = null because firstNode is a object of type ListNode, which has int data and listNode type instances.

tony.wang
– tony.wang

2014-03-23 04:10:06 +00:00
Commented Mar 23, 2014 at 4:10
@tony.wang The whole ListNode object is null meaning Java doesn't even get to the point of allocating memory for it much less any of its fields.

Brian
– Brian

2014-03-23 04:17:02 +00:00
Commented Mar 23, 2014 at 4:17

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