Fetcher.java

//: c15:Fetcher.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// <applet code=Fetcher width=500 height=300>
// </applet>
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import com.bruceeckel.swing.*;

public class Fetcher extends JApplet {
  JButton fetchIt= new JButton("Fetch the Data");
  JTextField f = 
    new JTextField("Fetcher.java", 20);
  JTextArea t = new JTextArea(10,40);
  public void init() {
    Container cp = getContentPane();
    cp.setLayout(new FlowLayout());
    fetchIt.addActionListener(new FetchL());
    cp.add(new JScrollPane(t));
    cp.add(f); cp.add(fetchIt);
  }
  public class FetchL implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      try {
        URL url = new URL(getDocumentBase(),
          f.getText());
        t.setText(url + "\n");
        InputStream is = url.openStream();
        BufferedReader in = new BufferedReader(
          new InputStreamReader(is));
        String line;
        while ((line = in.readLine()) != null)
          t.append(line + "\n");
      } catch(Exception ex) {
        t.append(ex.toString());
      }
    }
  }
  public static void main(String[] args) {
    Console.run(new Fetcher(), 500, 300);
  }
} ///:~