import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel...面板和JScrollPane面板
*
* 2:JPanel面板可以聚集一些组件来布局
* 读者首先应该明白面板也是一种容器,因为它继承了java.awt.Container类
* @author...p1=new JPanel(new GridLayout(1,3,10,10));
JPanel p2=new JPanel(new GridLayout(1,2,10,10));...JPanel p3=new JPanel(new GridLayout(1,2,10,10));
JPanel p4=new JPanel(new GridLayout(2,1,10,10...面板上,
* 然后将JPanel作为一个整体组件添加到JScrollPane组件上。