Java Swing - 如何动态添加节点到JTree...

import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTree;

public class Main {

  public static void main(String[] args) {
    JTree tree = new JTree();
    tree.setVisibleRowCount(10);
    JOptionPane.showMessageDialog(null, new JScrollPane(tree));
  }
}