How to add and delete nodes in Jtree?

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How to add and delete nodes in Jtree?..

Answer / ramachandran

Iam try this code but not properly working...yor try to get
ans and post..........

DefaultTreeModel model = (DefaultTreeModel)tree.getModel();
DefaultMutableTreeNode root =
(DefaultMutableTreeNode)model.getRoot();
root.add(new DefaultMutableTreeNode("another_child"));
model.reload(root);..........

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