import java.awt.Color;
import java.awt.Dimension;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
public class Main extends JFrame {
private JTree m_simpleTree;
private DefaultMutableTreeNode m_rootNode;
public Main() {
m_rootNode = new DefaultMutableTreeNode("A");
DefaultMutableTreeNode enggNode = new DefaultMutableTreeNode("B");
DefaultMutableTreeNode markNode = new DefaultMutableTreeNode("C");
DefaultMutableTreeNode hrNode = new DefaultMutableTreeNode("D");
m_rootNode.add(enggNode);
m_rootNode.add(markNode);
m_rootNode.add(hrNode);
m_simpleTree = new JTree(m_rootNode);
DefaultTreeCellRenderer cellRenderer = (DefaultTreeCellRenderer) m_simpleTree.getCellRenderer();
cellRenderer.setOpenIcon(new ImageIcon("open.gif"));
cellRenderer.setClosedIcon(new ImageIcon("closed.gif"));
cellRenderer.setLeafIcon(new ImageIcon("leaf.gif"));
cellRenderer.setBackgroundNonSelectionColor(new Color(255, 255, 221));
cellRenderer.setBackgroundSelectionColor(new Color(0, 0, 128));
cellRenderer.setBorderSelectionColor(Color.black);
cellRenderer.setTextSelectionColor(Color.white);
cellRenderer.setTextNonSelectionColor(Color.blue);
JScrollPane scrollPane = new JScrollPane(m_simpleTree);
add(scrollPane);
}
public static void main(String[] arg) {
Main m = new Main();
m.setVisible(true);
m.setSize(new Dimension(450, 300));
m.validate();
}
}