JTextField("密码文本框",20));
p2.add(new JTextField("验证码文本框",20));
cards.add(p1,"card1"); //向卡片式布局面板中添加面板...1
cards.add(p2,"card2"); //向卡片式布局面板中添加面板2
CardLayout cl=(CardLayout)(cards.getLayout());
cl.show...JTextField("密码文本框",20));
p2.add(new JTextField("验证码文本框",20));
cards.add(p1,"card1"); //向卡片式布局面板中添加面板...import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;...//指定面板的布局为GridLayout,4行4列,间隙为10
panel.setLayout(new GridLayout(4,4,10,10));