集裝箱?contentPane = null
DefaultMutableTreeNode?treeNode=new?DefaultMutableTreeNode("我的電腦");
DefaultMutableTreeNode?treeNode1=new?DefaultMutableTreeNode(" network ");
DefaultMutableTreeNode?treeNode2=new?DefaultMutableTreeNode(“硬盤”);
DefaultMutableTreeNode?treeNode1_1=new?DefaultMutableTreeNode(" infinite ");
DefaultMutableTreeNode?treeNode1_2=new?DefaultMutableTreeNode(" limited ");
DefaultMutableTreeNode?treeNode2_1=new?DefaultMutableTreeNode(" A ");
DefaultMutableTreeNode?treeNode2 _ 2 =新建?DefaultMutableTreeNode(" B ");
treenode . add(treenode 1);
treenode . add(treenode 2);
treenode 1 . add(treenode 1 _ 1);
treenode 1 . add(treenode 1 _ 2);
treenode 2 . add(treenode 2 _ 1);
treenode 2 . add(treenode 2 _ 2);
JTree?樹=新?JTree(treeNode);
content pane = getContentPane();
JPanel?jp=new?JPanel();
jp.add(樹);
content pane . add(jp);
this.setSize(300,250);
this.setLocation(400,300);
this . set visible(true);
}