Use UIManager to change the default icon for JTree : JTree Editor Renderer « Swing « Java Tutorial






import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;

public class Main {
  public static void main(String[] argv) throws Exception {
    Icon leafIcon = new ImageIcon("leaf.gif");
    Icon openIcon = new ImageIcon("open.gif");
    Icon closedIcon = new ImageIcon("closed.gif");

    UIManager.put("Tree.leafIcon", leafIcon);
    UIManager.put("Tree.openIcon", openIcon);
    UIManager.put("Tree.closedIcon", closedIcon);
    
    JTree tree = new JTree();

    JFrame f = new JFrame();
    f.add(new JScrollPane(tree));
    f.setSize(300, 300);
    f.setVisible(true);

  }
}








14.69.JTree Editor Renderer
14.69.1.Getting Default TreeCellRenderer From JTreeGetting Default TreeCellRenderer From JTree
14.69.2.extends JLabel implements TreeCellRendererextends JLabel implements TreeCellRenderer
14.69.3.Creating a Custom RendererCreating a Custom Renderer
14.69.4.Working with Tree Tooltips: using a Tooltip Cell RendererWorking with Tree Tooltips: using a Tooltip Cell Renderer
14.69.5.Editing Tree Nodes with triple clickingEditing Tree Nodes with triple clicking
14.69.6.Creating a DefaultCellEditor: JTextFieldCreating a DefaultCellEditor: JTextField
14.69.7.Creating a DefaultCellEditor: JComboBoxCreating a DefaultCellEditor: JComboBox
14.69.8.Creating a DefaultCellEditor: JCheckBoxCreating a DefaultCellEditor: JCheckBox
14.69.9.Creating a Proper ComboBox Editor for a TreeCreating a Proper ComboBox Editor for a Tree
14.69.10.Creating an Editor Just for Leaf NodesCreating an Editor Just for Leaf Nodes
14.69.11.Rendering an image in a JTable column
14.69.12.Setting the Activation Click Count for a Table Cell Editor in a JTable Component
14.69.13.Using DefaultTreeCellRenderer
14.69.14.Changing and Removing the Default Icons in a JTree Component
14.69.15.Use UIManager to change the default icon for JTree
14.69.16.Flush the internal cache of Row height