?? cardlayoutframe.java
字號:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class CardLayoutFrame extends JFrame
{
JButton btPrevious=new JButton("前一張");
JButton btNext=new JButton("后一張");
JPanel flowPanel=new JPanel(new FlowLayout());
JPanel cardPanel=new JPanel(new CardLayout());
public CardLayoutFrame()
{
this.getContentPane().add(flowPanel,BorderLayout.SOUTH);
this.getContentPane().add(cardPanel,BorderLayout.CENTER);
cardPanel.add(getCard(1),"Card1");
cardPanel.add(getCard(2),"Card2");
flowPanel.add(btPrevious);
flowPanel.add(btNext);
ActionListener listener=new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
switchCard();
}
};
btPrevious.addActionListener(listener);
btNext.addActionListener(listener);
this.setSize(300,200);
this.setTitle("GardLayoutDemo");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.show();
}
JPanel getCard(int index)
{
JPanel panel=new JPanel(new BorderLayout());
JLabel label=new JLabel("<HTML><h1 style=color:red>"+"這是第"+index+"張卡片"+"</h1></HTML>");
label.setHorizontalAlignment(JLabel.CENTER);
panel.add(label);
return panel;
}
void switchCard()
{
CardLayout c1=(CardLayout)cardPanel.getLayout();
if(currentIndex==0)
{
currentIndex++;
c1.show(cardPanel,"Card2");
}
else
{
currentIndex--;
c1.show(cardPanel,"Card1");
}
}
public static void main(String[] args)
{
CardLayoutFrame frame=new CardLayoutFrame();
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -