You can create a TreeTable by specifying a TreeTableModel in the constructor:

public TreeTable(TreeTableModel model);

You can also create a TreeTable by specifying a TreeTableModelAdapter:

public TreeTable(TreeTableModelAdapter adapter);

Last, using the default no-argument constructor, a TreeTable is created having a TreeTableModel that is returned by the static method:

protected static TreeTableModel createDefaultTreeTableModel();

By default, a DefaultMutableTreeTableModel instance is returned.