nogod
发贴: 11
积分: 0
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于 2005-01-12 08:58
我用向导生成了一个frame,在上面添加了一个JSplitPane,然后在左边又添加了一个JTree对象,并接着设置JTree对象的属性 是代码: 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); jTree1=new JTree(root); jSplitPane1.add(jTree1,JSplitPane.LEFT); jTree1.addTreeSelectionListener(this); int mode=TreeSelectionMode1.SINGLE_TREE_SELECTION; jTree1.getSelectionMode1().setSelectionMode(mode); 代码应该没问题的啊。
可是添上代码就报告这样的错误呢。 "eventframe.java": Error #: 300 : class DefaultMutableTreeNode not found in class card.eventframe at line 37, column 5 "eventframe.java": Error #: 300 : class DefaultMutableTreeNode not found in class card.eventframe at line 37, column 37 "eventframe.java": Error #: 300 : class DefaultMutableTreeNode not found in class card.eventframe at line 38, column 1 "eventframe.java": Error #: 300 : class DefaultMutableTreeNode not found in class card.eventframe at line 38, column 39 "eventframe.java": Error #: 300 : class DefaultMutableTreeNode not found in class card.eventframe at line 40, column 17 "eventframe.java": Error #: 300 : method addTreeSelectionListener(card.eventframe) not found in class javax.swing.JTree at line 44, column 8 "eventframe.java": Error #: 300 : variable TreeSelectionMode1 not found in class card.eventframe at line 45, column 10 "eventframe.java": Error #: 300 : method getSelectionMode1() not found in class javax.swing.JTree at line 46, column 8 这个到底怎么了啊。。请高人指点啊。
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