Recursive Traversal of a JTree
R. Kevin ColeNovember 17, 2000

Here is a simple recursive method for traversing a JTree and printing all the leaf nodes (originally posted to comp.lang.java.programmer, November 2000)

    .
    .
TreeModel model = tree.getModel();
Object root = model.getRoot();
walk( model, root );
    .
    .
/** 
 *    Visit every node in the tree and print the leaf nodes.
 *    @param model  the JTree's model
 *    @param o      Start at this branch in the tree.
 */
protected void walk( TreeModel model, Object o )
{
    int count = model.getChildCount(o);
    for( int i=0;  i < count;  i++ )
    {
        Object child = model.getChild(o, i );
        if (  model.isLeaf( child )  )
            System.out.println( child.toString() );	
        else
            walk( model, child );
    }
}