...
DefaultMutableTreeNode root = new DefaultMutableTreeNode("根节点");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("父节点1");
DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("父节点2");
DefaultTreeModel treeModel = new DefaultTreeModel(root);
treeModel.insertNodeInto(node1, root, root.getChildCount());
treeModel.insertNodeInto(node2, root, root.getChildCount());
.....
一直提示我treeModel需要标识,但是我已经定义了啊。DefaultTreeModel treeModel = new DefaultTreeModel(root);
请问是为什么啊,谢谢
DefaultMutableTreeNode root = new DefaultMutableTreeNode("根节点");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("父节点1");
DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("父节点2");
DefaultTreeModel treeModel = new DefaultTreeModel(root);
treeModel.insertNodeInto(node1, root, root.getChildCount());
treeModel.insertNodeInto(node2, root, root.getChildCount());
.....
一直提示我treeModel需要标识,但是我已经定义了啊。DefaultTreeModel treeModel = new DefaultTreeModel(root);
请问是为什么啊,谢谢
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import javax.swing.tree.*;
import javax.swing.*;public class Test {
public Test() {
JTree tree = new JTree();
DefaultMutableTreeNode root = new DefaultMutableTreeNode("根节点");
DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("父节点1");
DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("父节点2");
// tree = new JTree(root);
DefaultTreeModel treeModel = new DefaultTreeModel(root);
treeModel.insertNodeInto(node1, root, root.getChildCount());
treeModel.insertNodeInto(node2, root, root.getChildCount());
JFrame f = new JFrame();
f.setVisible(true);
f.setSize(300, 200);
f.getContentPane().add(tree);
f.pack();
}
public static void main(String[] args) {
new Test();
}
}