📄 panelexample.java
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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class PanelExample
{
public static void main (String args[])
{
JFrame frame_panel = new JFrame ("面板示例");
JPanel p1 = new JPanel();
JPanel p2 = new JPanel();
JPanel p3 = new JPanel(new BorderLayout());
p1.setBorder(BorderFactory.createTitledBorder("panel-1"));
p2.setBorder(BorderFactory.createTitledBorder("panel-2"));
p3.setBorder(BorderFactory.createTitledBorder("panel-3"));
p1.add(new JLabel("This is Panel1!"));
p2.add(new JLabel("This is panel2!"));
p3.add(new JLabel("This is panel3!"),BorderLayout. CENTER);
p3.add(p1, BorderLayout.NORTH);
p3.add(p2, BorderLayout.SOUTH);
Container contentPane = frame_panel.getContentPane();
contentPane.add (p3);
frame_panel.pack();
frame_panel.show();
frame_panel.setResizable(false) ;
frame_panel.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
}
}
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