import awb.*;
import java.awt.*;
import java.awt.event.*;

public class WhoWrote extends java.applet.Applet implements ActionListener
{
    TextField m0, m1, m2;
    Button b1, b2, b3;
    String author1, author2, author3;

    void Byline2(String name)
    {
        m1.setText("This program was written by");
        m2.setText("   " + name);
    }

    public void init()
    {
        m0 = new TextField(70);
        m0.setText("Who wrote the program?");
        m1 = new TextField(70);
        m2 = new TextField(70);
        b1 = new Button("Lady Emily");
        b2 = new Button("Shakespeare");
        b3 = new Button("Mark Twain");
        author1 = "Lady Emily Dunsmore";
        author2 = "William Shakespeare";
        author3 = "Mark Twain";
        add(m0);
        add(b1);
        add(b2);
        add(b3);
        add(m1);
        add(m2);
        b1.addActionListener(this);
        b2.addActionListener(this);
        b3.addActionListener(this);
    }
    public void actionPerformed(ActionEvent event)
    {
        Object cause = event.getSource();

        if (cause == b1)
        {
            Byline2(author1);
        }

        if (cause == b2)
        {
            Byline2(author2);
        }

        if (cause == b3)
        {
            Byline2(author3);
        }
    }
}