Component Programming:

Swing Version

This example applet is a close rewrite of the awt version, but implemented using Swing 1.2.2.

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

public class TextCopySwing1 extends JApplet implements ActionListener{

	JButton clear, display;
	JTextField input, output;
	JPanel buttonPanel;  // hold two buttons

	public TextCopySwing1 ( )  {  // constructor

		this.setFont ( new Font ( "Helvetica", Font.PLAIN, 18 ) );

		display = new JButton ( "display" );
		display.setBackground ( Color.red );
		display.addActionListener ( this );

		clear = new JButton ( "clear" );
		clear.setBackground ( Color.green );
		clear.addActionListener ( this );

		input= new JTextField ("type message here", 30);
		output = new JTextField ("message display area", 30);
		output.setEditable ( false );
		output.setBackground ( Color.yellow );

		buttonPanel = new JPanel();
		buttonPanel.setLayout ( new FlowLayout () );
		buttonPanel.add ( display );
		buttonPanel.add ( clear );

		Container cp = this.getContentPane();
		cp.setLayout ( new GridLayout ( 3, 1 ) );
		cp.add ( buttonPanel );
		cp.add ( input);
		cp.add ( output );

	}  // end MyPanelColorS constructor

	public void actionPerformed (ActionEvent e) {

		if ( e.getSource() == display ) {
			output.setText ( input.getText() );
			return;
		}  // end display

		if ( e.getSource() == clear ) {
			input.setText ( "" );
			output.setText ( "" );
			return;
		}  // end display

	}  // end action

}  // end TextCopy

Run the applet