也是第一次接觸，了解不深，在API文檔上看了下，在swing包里~
下面是API的一段代碼，參考下：
import java.awt.*;

import javax.swing.*;
import javax.swing.GroupLayout.Alignment;

public class TestGroupLayout {

/**
* @param args
*/
public static void main(String[] args) {

Frame f = new Frame();
f.setBounds(200,200,200,100);
Panel panel = new Panel();
GroupLayout layout = new GroupLayout(panel);
panel.setLayout(layout);

layout.setAutoCreateGaps(true);

layout.setAutoCreateContainerGaps(true);

GroupLayout.SequentialGroup hGroup = layout.createSequentialGroup();

Label label1 = new Label("username");
Label label2 = new Label("password");
TextField tf1 = new TextField();
TextField tf2 = new TextField();

hGroup.addGroup(layout.createParallelGroup().
addComponent(label1).addComponent(label2));
hGroup.addGroup(layout.createParallelGroup().
addComponent(tf1).addComponent(tf2));
layout.setHorizontalGroup(hGroup);

GroupLayout.SequentialGroup vGroup = layout.createSequentialGroup();

vGroup.addGroup(layout.createParallelGroup(Alignment.BASELINE).
addComponent(label1).addComponent(tf1));
vGroup.addGroup(layout.createParallelGroup(Alignment.BASELINE).
addComponent(label2).addComponent(tf2));
layout.setVerticalGroup(vGroup);

f.add(panel);
f.setVisible(true);
}

}

- -!既然不常見就是用得不多，GridBagLayout幾乎可以滿足你所有的布局方式了