Hi!
Here is an example on how to remove duplicates from ArrayList.
http://www.java2s.com/Code
And as CEHJ says you need to implement the methods equals(Object o ) and int hashCode()
Regards,
Tomas Helgi
Main Topics
Browse All TopicsDear fellow developers:
I am parsing an XML document that contains many names, using the SAX method, and then printing them out to the console. The names I am selecting are found within the <narrator> element within the XML document. As I parse the XML document, when I find the <narrator> element, I create a narrator object, set the name attribute for that object, and then add it to an ArrayList. Once I finished adding objects to the ArrayList, I print out the contents.
Because many of the names repeat within the XML document, I am trying to figure out a way to select ONLY the distinct names from the XML document, and then add it to the ArrayList so that my output contains ONLY unique names. This would be similar to using the SQL query, SELECT DISTINCT NAME FROM TABLE....
Can anyone show me how to do this? I have attached my Java code below.
Thanks in advance to all who reply.
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Hi!
Here is an example on how to remove duplicates from ArrayList.
http://www.java2s.com/Code
And as CEHJ says you need to implement the methods equals(Object o ) and int hashCode()
Regards,
Tomas Helgi
Business Accounts
Answer for Membership
by: CEHJPosted on 2009-10-29 at 23:56:23ID: 25700579
Add your Narrator objects to a Set<Narrator>. You will need to implement Narrator.equals based on the name and also implement Narrator.hashCode