import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;

import javax.swing.JFrame;
import javax.swing.JToggleButton;


public class FrameA extends JFrame implements ActionListener {
    int i=1;
    public FrameB fb[];
    JToggleButton toggleButton[];
    /**
     * Launch the application
     * @param args
     */
    public static void main(String args[]) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    FrameA frame = new FrameA();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame
     */
    public FrameA() {
        super();
        getContentPane().setLayout(null);
        fb = new FrameB[10];
        JToggleButton toggleButton[] = new JToggleButton[3];
        
        setBounds(100, 100, 195, 180);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    
        for(int i=0; i<3; i++){
            toggleButton[i] = new JToggleButton();
            toggleButton[i].setText("ToggleButton");
            toggleButton[i].setBounds(10, 25+i*50, 144, 26);
            getContentPane().add(toggleButton[i]);
            
            toggleButton[i].addActionListener(new ActionListener() {
                public void actionPerformed(final ActionEvent arg0) {
                    JToggleButton newtb1 = (JToggleButton)arg0.getSource();
                    if(newtb1.isSelected())
                    {
                        System.out.println("on");    
                        fb[i]= new FrameB();    //问题出在这里,说是要把i变成final
                    }else{
                        System.out.println("off");
                        fb[i].dispose();    //同样,i的问题
                    }
                    
                }
            });
            
        }
    }
}