package checkbox;

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.JCheckBox;

public class CheckboxFrame extends JFrame{

    private JTextField textField;
    private JCheckBox boldJCheckBox;
    private JCheckBox ItalicJCheckBox;

    public CheckboxFrame(){
        super("JCheckBox Text");
        setLayout(new FlowLayout());

        textField = new JTextField("Watch the font style change", 20);
        textField.setFont(new Font("Serif", Font.PLAIN, 14));
        add(textField);

        boldJCheckBox = new JCheckBox("Bold");
        ItalicJCheckBox = new JCheckBox("Italic");
        add(boldJCheckBox);
        add(ItalicJCheckBox);

        CheckBoxHandler handler = new CheckBoxHandler();
        boldJCheckBox.addItemListener(handler);
        ItalicJCheckBox.addItemListener(handler);
    }
    private class CheckBoxHandler implements ItemListener{
        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);
            }
            textField.setFont(font);
        }
    }

}