调用TreeSelectionListener接口后报错,请指点(在线等)
代码如下:
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
public class EventFrame extends JFrame implements TreeSelectionListener{
JPanel contentPane;
JSplitPane jSplitPane1 = new JSplitPane();
JTree jTree1 = new JTree();
………………
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现在报错如下：
"EventFrame.java ": moneymanager.EventFrame should be declared abstract; it does not define valueChanged(javax.swing.event.TreeSelectionEvent) in moneymanager.EventFrame at line 19, column 1。 19行就是上面public class…… 那一行。请指点一下。谢谢
[解决办法]
你要实现valueChanged
这个方法。
