// Fig. 13.1: TextAreaDemo.java // Copying selected text from one text area to another. import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TextAreaDemo extends JFrame { private JTextArea t1, t2; private JButton copy; public TextAreaDemo() { super( "TextArea Demo" ); Box b = Box.createHorizontalBox(); String s = "This is a demo string to\n" + "illustrate copying text\n" + "from one TextArea to \n" + "another TextArea using an\n"+ "external event\n"; t1 = new JTextArea( s, 10, 15 ); b.add( new JScrollPane( t1 ) ); copy = new JButton( "Copy >>>" ); copy.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent e ) { t2.setText( t1.getSelectedText() ); } } ); b.add( copy ); t2 = new JTextArea( 10, 15 ); t2.setEditable( false ); b.add( new JScrollPane( t2 ) ); Container c = getContentPane(); c.add( b ); // Box placed in BorderLayout.CENTER setSize( 425, 200 ); show(); } public static void main( String args[] ) { TextAreaDemo app = new TextAreaDemo(); app.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } } ); } } /************************************************************************** * (C) Copyright 1999 by Deitel & Associates, Inc. and Prentice Hall. * * All Rights Reserved. * * * * DISCLAIMER: The authors and publisher of this book have used their * * best efforts in preparing the book. These efforts include the * * development, research, and testing of the theories and programs * * to determine their effectiveness. The authors and publisher make * * no warranty of any kind, expressed or implied, with regard to these * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or * * consequential damages in connection with, or arising out of, the * * furnishing, performance, or use of these programs. * *************************************************************************/