Split pane only shows buttons, not the panes I placed there

Question

problem: my split pane only shows buttons, not the panes I placed there
here's my complete code:
thanks.
* MLDpane.java
* Created on July 23, 2003, 3:31 PM
import javax.swing.*;
import javax.swing.tree.*;
* @author  Administrator
public class MLDPane extends JSplitPane {
    private JScrollPane jScrollPane2 = new JScrollPane();
    private JTextPane ttView = new JTextPane();
    private JScrollPane jScrollPane3 = new JScrollPane();
    private JTree treeView = new JTree();
    private  void init() {
        setDividerSize(5);
        //setPreferredSize(new java.awt.Dimension(600, 302));
        //jScrollPane2.setMinimumSize(new java.awt.Dimension(100, 20));
        //jScrollPane2.setPreferredSize(new java.awt.Dimension(300, 300));
        //ttView.setPreferredSize(new java.awt.Dimension(300, 22));
        jScrollPane2.setViewportView(ttView);
        setLeftComponent(jScrollPane2);
        jScrollPane3.setHorizontalScrollBarPolicy(javax.swing.JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        //jScrollPane3.setMinimumSize(new java.awt.Dimension(100, 20));
        //jScrollPane3.setPreferredSize(new java.awt.Dimension(300, 200));
        treeView.setModel(null);
        jScrollPane3.setViewportView(treeView);
        setRightComponent(jScrollPane3);
     public MLDPane() {
    /** Creates a new instance of MLDpane */
     public MLDPane(MedLEEDoc mld) {
        init();
        ttView.setDocument(mld.getTextDoc());
        treeView.setModel(new DefaultTreeModel(mld.getRoot()));
    public static void main(String args[]) {
        JFrame j = new JFrame();
        j.getContentPane().add(new MLDPane());
        j.show();
        //j.setVisible(true);
        //j.setExtendedState(j.MAXIMIZED_BOTH);

Answer 1

Hi,
I think you are invoking the default (no argument constructor) instead of the one argument constructor
try this:
j.getContentPane().add(new MLDPane(MedLEEDocObject));