remnode.html
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<TITLE>Removing a Node to a JTree Component
(Java Developers Almanac Example)
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<h3>
e1025.
Removing a Node to a JTree Component</h3>
<pre>
// Create tree
JTree tree = new JTree();
DefaultTreeModel model = (DefaultTreeModel)tree.getModel();
// Find node to remove
int startRow = <font color="#0066ff"><i>0</i></font>;
String prefix = <font color="#0066ff"><i>"b"</i></font>;
TreePath path = tree.getNextMatch(prefix, startRow, Position.Bias.Forward);
MutableTreeNode node = (MutableTreeNode)path.getLastPathComponent();
// Remove node; if node has descendants, all descendants are
// removed as well
model.removeNodeFromParent(node);
// The root cannot be removed with removeNodeFromParent();
// use the following to remove the root
model.setRoot(null);
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Related Examples
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e1022. <a class="eglink" href="GetNodes.html?l=rel">
Visiting All the Nodes in a JTree Component
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e1023. <a class="eglink" href="FindNode.html?l=rel">
Finding a Node in a JTree Component
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e1024. <a class="eglink" href="AddNode.html?l=rel">
Adding a Node to a JTree Component
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e1026. <a class="eglink" href="Node2Path.html?l=rel">
Converting a Node in a JTree Component to a TreePath
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e1027. <a class="eglink" href="Tree2Path.html?l=rel">
Converting All Nodes in a JTree Component to a TreePath Array
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See also:
<a class="eglink" href="/egs/javax.swing.tree/pkg.html?l=rel#Events">
Events
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<a class="eglink" href="/egs/javax.swing.tree/pkg.html?l=rel#Layout">
Layout
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<a class="eglink" href="/egs/javax.swing.tree/pkg.html?l=rel#Node%20Expansion">
Node Expansion
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<a class="eglink" href="/egs/javax.swing.tree/pkg.html?l=rel#Selections">
Selections
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