JRadioButtonを試す

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

/**
* $Id: JRadioButton.html,v 1.1 2009/06/22 16:11:47 kishi Exp kishi $
*/

public class JRadioButtonTest extends JFrame {

    public static void main( String[] args ) {
        JRadioButtonTest test = new JRadioButtonTest( "JRadioButtonのテスト" );

        test.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        test.setVisible( true );
    }

    public JRadioButtonTest( String title ) {
        setTitle( title );
        setBounds( 10, 10, 300, 200 );

        JRadioButton radio1 = new JRadioButton( "読売新聞", true );
        JRadioButton radio2 = new JRadioButton( "産経新聞", false );
        JRadioButton radio3 = new JRadioButton( "毎日新聞" );
        JRadioButton radio4 = new JRadioButton( "朝日新聞" );

        ButtonGroup group = new ButtonGroup();
        group.add( radio1 );
        group.add( radio2 );
        group.add( radio3 );
        group.add( radio4 );

        JPanel panel = new JPanel();
        panel.setLayout( new BoxLayout( panel, BoxLayout.Y_AXIS ) );

        panel.add( radio1 );
        panel.add( radio2 );
        panel.add( radio3 );
        panel.add( radio4 );

        JButton submit = new JButton( "送信" );
        panel.add( submit );

        MyAction action = new MyAction();
        action.setButtonGroup( group );
        submit.addActionListener( action );

        getContentPane().add( panel );
    }
}

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MyAction.java
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import javax.swing.*;

import java.awt.*;
import java.awt.event.*;

import java.util.*;

/**
* $Id: JRadioButton.html,v 1.1 2009/06/22 16:11:47 kishi Exp kishi $
*/

public class MyAction extends AbstractAction {

    private ButtonGroup group;

    public void setButtonGroup( ButtonGroup group ) {
        this.group = group;
    }

    public void actionPerformed( ActionEvent event ) {

        System.out.println( "送信ボタンがクリックされました！" );

        Enumeration enumeration = group.getElements();
        while ( enumeration.hasMoreElements() ) {
            JRadioButton radioButton = ( JRadioButton ) enumeration.nextElement();
            // System.out.println( radioButton.getText() + ": " + radioButton.isSelected());

            if ( radioButton.isSelected() ) {
                System.out.println( radioButton.getText() + " が選択されました" );
                System.out.println();
            }
        }
    }


}