[serjant]

here is you program 3,but it is JFrame,you should read about how to make Applets and change some code

Code:

import javax.swing.*;
import java.awt.event.*;
public class Frame extends JFrame{

	private JButton addText=new JButton("Add text");
	private JTextArea textArea=new JTextArea();
	private JTextField textField=new JTextField("");
	
	public Frame(String name){
		super(name);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.pack();
		this.getContentPane().add(this.addComponents());
		this.setSize(200,300);
		this.setVisible(true);
	}
	
	private JPanel addComponents(){
		JPanel p=new JPanel();
		p.setLayout(new BoxLayout(p,BoxLayout.Y_AXIS));
		p.add(textField);
		p.add(addText);
		p.add(textArea);
		addText.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				textArea.append(textField.getText()+"\n");
				textField.setText("");
			}
		});
		return p;
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new Frame("My prog");
	}

}