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

@SuppressWarnings("serial")
public class Counter2 extends JPanel implements ActionListener
{
    JButton b = new JButton("toUpperCase");
    JTextField l = new JTextField(15);
    JTextField o = new JTextField(15);
    
    Counter2()
    {        
    	add(b);
    	add(l);
    	add(o);
    	b.addActionListener(new ActionListener()
    	 {
    		public void actionPerformed(ActionEvent e) 
	         {
		       String noe = l.getText().toUpperCase();
		       o.setText(noe);
	         }
    	 });
    }
	
    public static void show(JComponent c)
    {
    	JFrame f = new JFrame();
    	f.add(c);
    	f.pack();
    	f.setVisible(true);
    }
	    
	public static void main(String[] args) 
	{	
		Counter2.show(new Counter2());
	}

	@Override
	public void actionPerformed(ActionEvent e) 
	{
	
	}
	

}