package checkboxtest;

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

public class CheckBoxFrame extends JFrame {

	private final JTextField textField;
	private final JCheckBox boldJCheckBox;
	private final JCheckBox italicJCheckBox;

	public CheckBoxFrame() {

		super( "JCheckBox Test" );
		setLayout( new FlowLayout() );

		textField = new JTextField( "Watch the font style change", 20 );
                italicJCheckBox = new JCheckBox( "Italic" );
                textField.setFont( new Font( "Serif", Font.PLAIN, 14));
                add( textField );
                boldJCheckBox = new JCheckBox( "Bold" );
                add( boldJCheckBox );
                add( italicJCheckBox );
                CheckBoxHandler handler = new CheckBoxHandler();
                boldJCheckBox.addItemListener( handler );
                italicJCheckBox.addItemListener( handler );

        }

    private class CheckBoxHandler implements ItemListener{
        @Override
        public void itemStateChanged( ItemEvent event ){
            Font font = null;
            if (boldJCheckBox.isSelected () && italicJCheckBox.isSelected()){
                font = new Font ("Serif", Font.BOLD + Font.ITALIC, 14);
            } else {
                if (boldJCheckBox.isSelected()) {
                    font = new Font ("Serif", Font.BOLD, 14);
                } else {
                    if (italicJCheckBox.isSelected()) {
                        font = new Font ("Serif", Font.ITALIC, 14);
                    } else {
                        font = new Font ("Serif", Font.PLAIN, 14);
                    }
                }
            }
        }
    }
}