import javax.swing.*;
import java.awt.event.*;
import java.awt.Container; //need this to add controls
import java.awt.*; //need this for layoutmanager
public class StylingWithTextSize extends JFrame
{
	private JFrame mainFrame;
	private JButton exitButton;
	private JLabel inLabel;
	private JTextField tinField;
	private JCheckBox boxItalic;
	private JCheckBox boxBold;
	private JRadioButton rdbutCourier;
	private JRadioButton rdbutSansSerif;
	private JRadioButton rdbutSerif;
	private JLabel textLabel;
	private JTextField fontField;
		 
	
	
	
	public StylingWithTextSize() // a constructor
	{
		mainFrame = new JFrame("Check Box Example");
			
				//create all components
		
		exitButton = new JButton("Exit");
		inLabel = new JLabel("Enter Some Text:");
		tinField = new JTextField(20);
		boxItalic = new JCheckBox("Italic");
		boxBold = new JCheckBox("Bold");
		rdbutCourier = new JRadioButton("COurier");
		rdbutSansSerif = new JRadioButton("SansSerif");
		rdbutSerif = new JRadioButton("Serif");
		textLabel = new JLabel("Font Size");
		fontField = new JTextField(2);
		
		
				//group radio buttons
		ButtonGroup rgroup = new ButtonGroup();
		rgroup.add(rdbutCourier);
		rgroup.add(rdbutSansSerif);
		rgroup.add(rdbutSerif);	

		
			// get the content pane
		Container c = mainFrame.getContentPane();
			// set the ;aypit ,amager
		c.setLayout(new FlowLayout());
		
			//add the components to the ContentPane
		c.add(inLabel);
		c.add(tinField);
		c.add(boxItalic);
		c.add(boxBold);
		c.add(exitButton);
		c.add(rdbutCourier);
		c.add(rdbutSansSerif);
		c.add(rdbutSerif);		
		c.add(fontField);
	
		
			//create accelerator keys
		boxItalic.setMnemonic('I');
		boxBold.setMnemonic('B');
		exitButton.setMnemonic('x');
		rdbutCourier.setMnemonic('C');
		rdbutSansSerif.setMnemonic('S');
		rdbutSerif.setMnemonic('f');
	
					
		mainFrame.setSize(300,150);
		
		//set the initial button and corresponding font
		rdbutCourier.setSelected(true);
		tinField.setFont(new Font("Courier", Font.PLAIN, 12));
		//declration registration
		ChkBoxHandler chandler = new ChkBoxHandler();
		boxItalic.addItemListener(chandler);
		boxBold.addItemListener(chandler);
		
		rdbutCourier.addItemListener(chandler);
		rdbutSansSerif.addItemListener(chandler);
		rdbutSerif.addItemListener(chandler);
		
			//define and register window event handler
		mainFrame.addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e) {System.exit(0);}
		});
		
			//create and register the exit button event handler
		
		ExitButtonHandler ehandler = new ExitButtonHandler(); //instantiate a handler 
		exitButton.addActionListener(ehandler); //register the handler
		
		mainFrame.show();
	}
	
	
	//Check Box listener class code
	class ChkBoxHandler implements ItemListener
	{
		private int italicFont;
		private int boldFont;
		private int style;		
		private int size;

		public ChkBoxHandler()
		{
		}
		public void itemStateChanged(ItemEvent e)
		{
			/*if (e.getSource() == boxBold)
				if (e.getStateChange() == e.SELECTED)
					boldFont = Font.BOLD;
				else
					boldFont = Font.PLAIN;
				else
					if (e.getStateChange() == e.SELECTED)
						italicFont = Font.ITALIC;
					else
						italicFont = Font.PLAIN;*/
			
			
			style = Font.PLAIN;
			if(boxItalic.isSelected()) style += Font.ITALIC;
			if(boxBold.isSelected()) style += Font.BOLD;
			
			tinField.setFont( new Font( "Courier", style, 12));

				
				
		//rbutton stuff		
		
				if (e.getSource() == rdbutCourier)
				tinField.setFont(new Font("Courier", Font.PLAIN, 12));
			else if (e.getSource() == rdbutSansSerif)
				tinField.setFont(new Font("SansSerif", Font.PLAIN, 12));
			else if (e.getSource() == rdbutSerif)
				tinField.setFont(new Font("Serif", Font.PLAIN, 12));

				
				
				
				
				
				
				tinField.repaint();
			}
		}// end of check box listener class
		
		
		
		public void focusGained (FocusEvent e){}
		public void focusLost(FocusEvent e)
		{
			if(e.getSource() == fontField)
				size = Integer.parseInt(fontField.getText());
		}
			
	
		//inner class for the Exit button event handler
	private class ExitButtonHandler implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			System.exit(0);
		}
	} // end of inner class
	
	public static void main(String args[])
	{
		new StylingWithTextSize(); // instantiate a GUI object
	}
} //end of class