JTabbedPane 刷新 Jpanel面板的遍历

涉及到跨面板的 控件调用, 通过写方法,外部程序也可以调用,

package com.lion.tea.ui.model;

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

/** A simple example that demontrates my (almost
complete) lack of understanding of the question. ;-) */
public class t extends JFrame
implements ActionListener {

/* The tabbed pane at the heart of it. */
JTabbedPane jtp;

/** Content panel of the tabbed pane */
JPanel page1, page2, page3;

/** Button to control UI */
JButton b1, b2;

/** Counter for the labels*/
int count;

private JButton b22;

/** A tabbed pane with three content tabs. */
t() {
super("Flip Tabs");

jtp = new JTabbedPane();
add( jtp );

page1 = new JPanel();
b1 = new JButton("Button 1");
b1.addActionListener(this);
page1.add( b1 );

jtp.add( page1, "page1" );

page2 = new JPanel();
b22 = new JButton("Button 222");
page2.add(b22);
jtp.add( page2, "page2" );

page3 = new JPanel();
jtp.add( page3, "page3" );

add(jtp);

pack();
setSize( getPreferredSize() );

count = 0;
}

/** On button one, make and flip to button 2.
On button two, add another label to tabbed pane 3. */
public void actionPerformed(ActionEvent ae) {
Object o = ae.getSource();

System.out.println(((JButton)o).getText());
if ( o==b1 ) {
if (b2==null) {
b2 = new JButton("Button 2");
b22.setText("chensss");
b2.addActionListener(this);
page2.add( b2 );
jtp.setSelectedComponent( b2.getParent() );
for (int i =0;i <page2.getComponentCount();i++)

{
JButton a =(JButton)page2.getComponent(i);

System.out.println("sss"+a.getText());//

}

}
} else { // must be b2
JLabel l1 = new JLabel("Heyoo! .." + ++count);
page3.add( l1 );
jtp.setSelectedComponent( l1.getParent() );
}
validate();
}

/** Gimme' it. Now! */
public static void main(String [] args) {
t f = new t();

f.setVisible(true);
}
}