一些其他建议：
不要使用空格进行布局；使用对齐方式。
让布局通过使用组件的首选大小来完成工作。
for-each尽可能使用该构造。
从EDT开始。
import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;public class FurnitureTest { private static final class FurniturePanel extends JPanel implements ActionListener { private static final int N = 3; private static final Icon icon = UIManager.getIcon("OptionPane.informationIcon"); private JPanel westPanel = new JPanel(); private JPanel centerPanel = new JPanel(); private JButton[] commandButtons = { new JButton("Add Chair"), new JButton("Add Table"), new JButton("Add Desk"), new JButton("Clear All"), new JButton("Total Price"), new JButton("Save"), new JButton("Load"), new JButton("Summary") }; FurniturePanel() { this.setLayout(new GridLayout()); westPanel.setLayout(new BoxLayout(westPanel, BoxLayout.Y_AXIS)); for (JButton b : commandButtons) { b.setAlignmentX(JButton.CENTER_ALIGNMENT); westPanel.add(b); b.addActionListener(this); } this.add(westPanel, BorderLayout.WEST); centerPanel.setLayout(new GridLayout(N, N, N, N)); for (int i = 0; i < N * N; i++) { centerPanel.add(new JLabel(icon)); } this.add(centerPanel, BorderLayout.CENTER); } @Override public void actionPerformed(ActionEvent e) { System.out.println(e); } } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { Jframe application = new Jframe(); FurniturePanel panel = new FurniturePanel(); application.add(panel); application.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); application.pack(); application.setLocationByPlatform(true); application.setVisible(true); } }); }}
