import java.awt.*;
import javax.swing.*;

public class MyFlowLayout extends JFrame
{
JPanel panel;
JPanel panel1,panel2;
JButton b1,b2,b3,b4;
public MyFlowLayout()
{
panel=new JPanel();
panel.setLayout(new GridLayout(1,2));
this.getContentPane().add(panel);

panel1=new JPanel();
panel1.setLayout(new FlowLayout(FlowLayout.LEFT));
panel.add(panel1);

panel2=new JPanel();
panel2.setLayout(new FlowLayout(FlowLayout.RIGHT));
panel.add(panel2);

b1=new JButton("button1");
b2=new JButton("button2");
b3=new JButton("button3");
b4=new JButton("button4");

panel1.add(b1);
panel1.add(b2);

panel2.add(b3);
panel2.add(b4);

this.setSize(400,400);
this.setVisible(true);
}
public static void main(String args[])
{
new MyFlowLayout();
}
}
没有错 你拿去看看可以不

不错,收下了,