package RadioButton;



import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ItemListener;
import java.awt.event.ItemEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JRadioButton;
import javax.swing.ButtonGroup;

public class RadioButtonFrame extends JFrame
{
        private JTextField textField;
        private Font plainFont;
        private Font boldFont;
        private Font italicFont;
        private Font boldItalicFont;
        private JRadioButton plainJRadioButton;
        private JRadioButton boldJRadioButton;
        private JRadioButton italicJRadioButton;
        private JRadioButton boldItalicJRadioButton;
        private ButtonGroup radioGroup;

        public RadioButtonFrame()
        {
            super("RadioButton Test");
            setLayout(new FlowLayout() );


            plainJRadioButton = new JRadioButton( "Plain",true );
            boldJRadioButton = new JRadioButton( "Bold",false );
            italicJRadioButton = new JRadioButton( "Bold/Italic",true );
            add(plainJRadioButton);
            add(boldJRadioButton);
            add(italicJRadioButton);
            add(boldItalicJRadioButton);


            radioGroup = new ButtonGroup();
            radioGroup.add( plainJRadioButton);
            radioGroup.add( boldJRadioButton);
            radioGroup.add( italicJRadioButton);
            radioGroup.add( boldJRadioButton);


            plainFont = new Font ( "Serif", Font.PLAIN,14);
            boldFont = new Font("Serif",Font.BOLD,14);
            italicFont = new Font("Serif", Font.ITALIC,14 );
            boldItalicFont = new Font("Serif", Font.BOLD + Font.ITALIC,14);
            textField.setFont(plainFont);

            plainJRadioButton.addItemListener(
              new RadioButtonHandler( plainFont));
            boldJRadioButton.addItemListener(
                new RadioButtonHandler( boldFont));
            italicJRadioButton.addItemListener(
               new RadioButtonHandler( italicFont));
            boldItalicJRadioButton.addItemListener(
              new RadioButtonHandler( boldItalicFont));
        }

        private class RadioButtonHandler implements ItemListener
                {
         private Font font;

         public RadioButtonHandler(Font f)
         {
             font = f ;
         }

         public void itemStateChanged(ItemEvent event )
         {
             textField.setFont(font);

         }





        }

}