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

class TestTextArea extends JFrame{

  /* Create pointers to the two text areas
   * and the button.
   */
  private JTextArea left, right;
  private JButton copy;

  /* Constructor method sets up the JFrame */
  public TestTextArea(){
    /* Name of the JFrame */
    super("Test of TextArea");
    /* Get ContentPane and set layout */
    Container pane = getContentPane();
    pane.setLayout(new BorderLayout());

    /* String for left JTextfield */
    String demoString = 
      "This is a demo string to" + 
      "\nillustrate copying text from one" + 
      "\nTextArea to another";

    /* Set up left JTextArea */
    left = new JTextArea(demoString,10,15);
    left.setFont(new Font("Sansserif",Font.PLAIN,24));
    pane.add(new JScrollPane(left),BorderLayout.WEST);
    
    /* Set up button */
    copy = new JButton("Copy >>");
    copy.setFont(new Font("Sansserif",Font.PLAIN,24));
    copy.addActionListener(new ActionListener(){
	// anonymous inner class
	
	public void actionPerformed(ActionEvent e){
	  right.setText(left.getSelectedText());
	}
      });
    pane.add(copy,BorderLayout.CENTER);

    /* Set up right JTextArea */
    right = new JTextArea(10,15);
    right.setFont(new Font("Sansserif",Font.PLAIN,24));
    right.setEditable(false);
    pane.add(new JScrollPane(right),BorderLayout.EAST);

    /* Set size and make visible */
    setSize(825,200);
    setVisible(true);
  }

  public static void main(String[] args){
    TestTextArea tta = new TestTextArea();
    tta.addWindowListener(new WindowAdapter(){
	public void windowClosing(WindowEvent e){System.exit(0);}
      });
  }
}