that's because the tree need to save the status of the nodes, and for that the model should be marked as persistable, and that's done by using marker interface Serializable
Jan Kwiatkowski wrote:without clause implements it doesn't work properly when I want to Drag&Drop nodes in this JTree
Jan Kwiatkowski wrote:Can it seriously affect the performance of my application?
Explained first what is changed, without Serializable the model does not know that he can perisist the model
Jan Kwiatkowski wrote:Or even: Does adding clause implements Serializable changes anything?
I am afraid that I don't understood well your question.
jarek notgonnashare wrote:I can get/list all IP addresses of machines I am connection to via LAN