import java.awt.*;
import java.awt.event.*;
import java.util.StringTokenizer;
import java.util.regex.*;
import javax.swing.*;
 
public class Assn4 extends JFrame{
 
 
	private JTextPane textPane1, textPane2;
	private JButton copyButton;
;
 
	public Assn4()
	{
		super( "Code Format" );
 
		Box box = Box.createHorizontalBox();
 
		StringBuffer buffer1 = new StringBuffer( "Testsearchingstring" );
 
		textPane1 = new JTextPane();
		textPane1.setText( buffer1.toString() );
		box.add( new JScrollPane( textPane1 ) );
 
		String str = "searching";
		Pattern pattern = Pattern.compile(str, Pattern.CASE_INSENSITIVE);
		Matcher matcher = pattern.matcher( buffer1.toString() );
		if (matcher.matches() )
		{
				String result = matcher.replaceAll("<b>$1</b>");
				textPane1.setText( result );
 
		}
 
 
 
		copyButton = new JButton( "Copy >>>"); 
		copyButton.addActionListener(
 
			new ActionListener()
			{
 
				public void actionPerformed( ActionEvent event )
				{
 
					textPane2.setText( textPane1.getText() );	
 
				}
			}
		);
 
		box.add( copyButton );
 
 
		textPane2 = new JTextPane();
		textPane2.setEditable(true);
		box.add( new JScrollPane( textPane2 ) );
 
		Container container = getContentPane();
		container.add( box );
 
		this.setLocationRelativeTo( null );
		this.setSize( 600, 300 );
		this.setVisible( true );	
	}
 
	public static void main( String args[] )
	{
		Assn4 application = new Assn4();
 
		application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE);
	}
 
}