setLayout(new GridLayout(3, 2));add(new JButton("Button 1"));add(new JButton("Button 2"));add(new JButton("Button 3"));add(new JButton("Button 4"));add(new JButton("Button 5"));add(new JButton("Button 6"));}public static void main(String[] args) {SwingUtilities.invokeLater(() -> {GridLayoutExample example = new GridLayoutExample();example.setVisible(true);});}}```5. BoxLayout：箱式布局，按照指定的方向（水平或垂直）排列组件。```javaimport javax.swing.*;import java.awt.*;public class BoxLayoutExample extends JFrame {public BoxLayoutExample() {setTitle("BoxLayout Example");setSize(300, 200);setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));add(new JButton("Button 1"));add(new JButton("Button 2"));add(new JButton("Button 3"));}public static void main(String[] args) {SwingUtilities.invokeLater(() -> {BoxLayoutExample example = new BoxLayoutExample();example.setVisible(true);});}}```