DefaultCellEditor.getComponent() has the following syntax.
public Component getComponent()
In the following code shows how to use DefaultCellEditor.getComponent() method.
//from w w w .j a v a 2s.c o m import java.awt.BorderLayout; import javax.swing.DefaultCellEditor; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTextField; import javax.swing.JTree; import javax.swing.tree.DefaultTreeCellEditor; import javax.swing.tree.DefaultTreeCellRenderer; import javax.swing.tree.TreeCellEditor; public class Main { public static void main(final String args[]) { JFrame frame = new JFrame("Editable Tree"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTree tree = new JTree(); tree.setEditable(true); DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer(); DefaultCellEditor comboEditor = new DefaultCellEditor(new JTextField()); System.out.println(comboEditor.getComponent()); TreeCellEditor editor = new DefaultTreeCellEditor(tree, renderer, comboEditor); tree.setCellEditor(editor); JScrollPane scrollPane = new JScrollPane(tree); frame.add(scrollPane, BorderLayout.CENTER); frame.setSize(300, 150); frame.setVisible(true); } }