Help making a JTree with a JCheckBox

Question

Hi -- I have an unusual situation where I need to have a JTree with each node containing 2 checkboxes and a label (with the ability to add a listener to tell when any of the potential checkboxes are checked). I also need the root node to have the same layout (which I'm assuming means creating a JPanel with 2 JCheckBoxes and a JLabel), with the ability to select all the checkboxes down the tree if one in the root is checked.

Any guidance or examples? I've checked out previous questions on here and associated examples...some of which allowed me to get to the point of having the tree "look" but without giving me a direction for implementing the action behind it.

Thanks!

Answer 1

Take a look at http://www.java2s.com/Code/Java/Swing-JFC/CheckBoxNodeTreeSample.htm

Answer 2

It wasn't clear where the buildFrame(), addStuffToFrame() and createNodes() methods go. I put them all into an OutlineJFrame class I created that extends JFrame, and deleted the 'frame.' preface where-ever it appeared. Then in my project's main() method, it just created one of those OutlineJFrame objects and set its visible to true. When it ran, I got a resizable but empty window. Where were the rows? Where were the nodes?

Then I asked Geertjan, the NetBeans guru, what I was doing wrong, and he sent me a re-write. But it had the same behaviour.

But I know that my java is fine, because another demo project I did (FileTreeJFrame) displays outline.java objects just fine.