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

public class ReadFile extends JFrame {

    private JTextField addressBar;
    private JEditorPane display;

    // constructor
    public ReadFile() {
        super("Mike's Browser");

        addressBar = new JTextField("Hey dude, enter a URL!");
        addressBar.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                // when enter is hit, an event occurs. This passes the string
                // from the JTextField into the loadCrap method
                loadCrap(event.getActionCommand());

            }
        });
        add(addressBar, BorderLayout.NORTH);

        display = new JEditorPane();
        // stops the user edit the contents of the pane. This would be set to
        // true if for eg, you're making a text editer
        display.setEditable(false);
        // listens to hyperlinks on the page waiting for a click
        display.addHyperlinkListener(new HyperlinkListener() {
            public void hyperlinkUpdate(HyperlinkEvent event) {
                // this method is called whenever an event occurs on the
                // hyperlink. It listens for clicks, not just enter / exit
                // events
                if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
                    loadCrap(event.getURL().toString());
                }
            }
        });
        add(new JScrollPane(display), BorderLayout.CENTER);
        setSize(500, 300);
        setVisible(true);
    }

    // load crap to display on the screen
    private void loadCrap(String userText) {
        try {
            // takes URL as a string and displays it on the screen
            display.setPage(userText);
            // keep url in addressbar
            addressBar.setText(userText);
        } catch (Exception e) {
            System.out.println("Well, that's crap! Check your typing, moron!");
        }
    }
}