jTree1.addTreeSelectionListener(this);cannot be applied

Question

DefaultMutableTreeNode root = new DefaultMutableTreeNode("信用卡系统");
DefaultMutableTreeNode bitchThing = new DefaultMutableTreeNode("查询");
root.add(bitchThing);
bitchThing = new DefaultMutableTreeNode("存款");
root.add(bitchThing);
bitchThing = new DefaultMutableTreeNode("取款");
root.add(bitchThing);
jTree1 = new JTree(root);
jSplitPane1.add(jTree1, JSplitPane.LEFT);
jTree1.addTreeSelectionListener(this);
int mode = TreeSelectionModel.SINGLE_TREE_SELECTION;
jTree1.getSelectionModel().setSelectionMode(mode);
这一句：jTree1.addTreeSelectionListener(this);
老提示cannot be applied 
请问是什么问题啊？

Answer 1

你这个this的类没有implements TreeSelectionListener