1  import java.io.IOException;

  2  import java.net.URL;

  3  import java.util.Scanner;

  4  

  5  /**

  6     This program prints all lines from a web page that contain

  7     references to other web sites.

  8  */

  9  public class WebPageReader

 10  {

 11     public static void main(String[] args) throws IOException

 12     {

 13        String address = "http://horstmann.com/index.html";

 14        URL pageLocation = new URL(address);

 15        Scanner in = new Scanner(pageLocation.openStream());

 16        while (in.hasNext())

 17        {

 18           String line = in.next();

 19           if (line.contains("href=\"http://")) 

 20           {

 21              int from = line.indexOf("\"");

 22              int to = line.lastIndexOf("\"");

 23              System.out.println(line.substring(from + 1, to));

 24           }

 25        }

 26     }

 27  }