Combobox Tree Node Editor
import java.awt.BorderLayout; import javax.swing.DefaultCellEditor; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTree; import javax.swing.tree.DefaultTreeCellEditor; import javax.swing.tree.DefaultTreeCellRenderer; import javax.swing.tree.TreeCellEditor; public class ComboTreeSample { public static void main(String args[]) { JFrame frame = new JFrame("Editable Tree"); JTree tree = new JTree(); tree.setEditable(true); DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree .getCellRenderer(); String elements[] = { "Root", "chartreuse", "rugby", "sushi" }; JComboBox comboBox = new JComboBox(elements); comboBox.setEditable(true); TreeCellEditor comboEditor = new DefaultCellEditor(comboBox); TreeCellEditor editor = new DefaultTreeCellEditor(tree, renderer, comboEditor); tree.setCellEditor(editor); JScrollPane scrollPane = new JScrollPane(tree); frame.getContentPane().add(scrollPane, BorderLayout.CENTER); frame.setSize(300, 150); frame.setVisible(true); } }