Question

java中点击一个按钮新建一个新的JPanel并显示出来可以吗，在线等急。。。

public class MyPanLeft extends JPanel implements ActionListener
{
private JPanel myPanel;
private JButton ok3;
JPanel leftPanel =null;

public MyPanLeft()
{
ok3 = new JButton("sss");
ok3.addActionListener(this);
leftPanel = new JPanel(new GridLayout(12,2));
leftPanel.add(doubleLB3);
leftPanel.add(ok3);
leftPanel.setBorder(BorderFactory.createTitledBorder("kkkk"));
leftPanel.setSize(250,480);
PlaneModel planeModel = new PlaneModel();
planeTable = new JTable(planeModel);
planeTable.setRowHeight(35);

planeScrollPane = new JScrollPane(planeTable);
planeScrollPane.setPreferredSize(new Dimension(780, 480));
// 添
leftPanel.setBounds(0, 0, 200, 480);
this.setLayout(null);
this.add(leftPanel);
this.setSize(200, 480);
this.setVisible(true);

public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
if(e.getSource() == ok3)
{
myPanel = new MyPanel();
this.add(myPanel);
myPanel.setVisible(true);
}

}

}
这样写点击ok3，始终myPanel显示不出来，求高手指点，希望把可编译代码贴出来谢谢了

Answer 1

你的代码贴的不完整

追问

大概过程是这样，一个JPanel中有个按钮，点击，在响应中新建一个JPanel并显示，主要this.add(myPanel)是指MyPanLeft吗