BorderLayout布局测试

import java.awt.BorderLayout;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;public class TestAwt {public static void main(String[] args) {JFrame frame = new JFrame();frame.setTitle("BorderLayout 测试");frame.setSize(500,500);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setLocationRelativeTo(null);{BorderLayout bl = new BorderLayout();JPanel jPanel = new JPanel(bl);jPanel.add(new JButton("TestButton"),BorderLayout.NORTH);jPanel.add(new JButton("TestButton"),BorderLayout.EAST);jPanel.add(new JButton("TestButton"),BorderLayout.SOUTH);jPanel.add(new JButton("TestButton"),BorderLayout.WEST);jPanel.add(new JButton("TestButton"),BorderLayout.CENTER);frame.add(jPanel);}frame.setVisible(true);}
}