import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;

public class TrivialApplet extends Applet
{	public void init() 
	{	setBackground (Color.white);
		add(inText);
		add(nameButton);
		add(inInt);
		add(ageButton);
		inText.addActionListener(nameButton);
		inInt.addActionListener(ageButton);		
		setVisible(true);
	}
	
	TextField inText = new TextField(25), inInt = new TextField("0"); 

	String nameS, ageS;
	ResponseButton  nameButton = new ResponseButton("Name", inText, this),
		ageButton  = new ResponseButton("Age", inInt, this);
		
	public void paint (Graphics g) 
	{	g.drawString ("Name and age",1,80); 
		if(nameButton.replyAvailable())
		{	String nameS = nameButton.getReply();
			g.drawString ("Your name is " + nameS,10,110);
		}
		if(ageButton.replyAvailable()) 
		{	String ageS = ageButton.getReply();
			int age = Integer.parseInt (ageS);
			g.drawString ("Your age is " + age,10,140);  
		}  
	}
}

public class ResponseButton extends Button implements ActionListener
{	public ResponseButton(String name, TextField controls, Applet who)
	{	super(name);
		addActionListener(this);
		this.controls = controls;
		this.who = who;
	}
	
	public void actionPerformed(ActionEvent e)
	{	reply = controls.getText();	
		who.repaint();	
	}

	public String getReply(){return reply;}

	public boolean replyAvailable(){return !reply.equals("");}

	private TextField controls;
	private String reply = "";
	private Applet who;
}