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Problems with addAll() from ArrayList - same reference...

Luciano Assis
Greenhorn

Joined: Apr 30, 2008
Posts: 16
Hello folks,

I want to clone an arrayList, but with different references (2 objects).

I tried to create a new arraylist and use de method addAll() passing the list, but it still continue with the same reference, if i modify some propertie of the new arrayList, the same propertie from the original list is modified too..

How can i clone an arraylist with 2 distinct objects?
marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

See the Cloning objects topic from Eckel's Thinking in Java. This section specifically addresses cloning an ArrayList and talks about "shallow" vs. "deep" copies (A deep copy with ArrayList).


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