java 为一个对话框中的按钮添加事件，以关闭该对话框，该事件怎么添加？

public void AddSuccessDialogShow()
{
JDialog AddSuccessDialog=new JDialog(this,"添加成功！");
JButton AddOkBt=new JButton("确定");
AddSuccessDialog.setBounds(450,200,220,150);
AddOkBt.setBounds(80,70,60,22);
AddSuccessDialog.setLayout(null);
AddSuccessDialog.add(AddOkBt);
AddSuccessDialog.show();
AddOkBt.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
AddSuccessDialog.dispose();//提示错误，什么原因？？
}
});
} }

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将这句 JDialog AddSuccessDialog=new JDialog(this,"添加成功虚庆！"); 改为
final JDialog AddSuccessDialog=new JDialog(this,"添加脊誉雀成功！"); 添加樱早关键字final

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