package ch11.readWebpage;

import java.io.IOException;
import java.net.URL;
import java.util.Scanner;

/**
 * A program that scans a webpage and prints out the links url.
 */
public class WebpageReader {
    public static void main(String[] args) throws IOException {

        URL pageLocation = new URL("http://horstmann.com/index.html");
        Scanner in = new Scanner(pageLocation.openStream());
        while (in.hasNextLine()){
           String line = in.nextLine();
           int to = 0;
           while(line.substring(to).contains("href='http://")) {
               int from = line.substring(to).indexOf("'");
               to = line.substring(to).indexOf("'", from + 1);
               System.out.println(line.substring(from + 1, to));
           }
       }
    }
}