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public static void main(String args[]) {
JFrame app = new JFrame("边界布局管理器");
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
app.setSize(360, 130);
Container c = app.getContentPane();
c.setLayout(new BorderLayout());
JPanel j=new JPanel();
j.setLayout(new BorderLayout());
j.add(new JButton("北"), BorderLayout.NORTH);
j.add(new JButton("中"), BorderLayout.CENTER);
j.add(new JButton("南"), BorderLayout.SOUTH);
c.add(new JButton("东"), BorderLayout.EAST);
c.add(new JButton("西"), BorderLayout.WEST);
c.add(j, BorderLayout.CENTER);
app.setVisible(true);
}